(function(){
/*
* jQuery 1.2.6 - New Wave Javascript
*
* Copyright (c) 2008 John Resig (jquery.com)
* Dual licensed under the MIT (MIT-LICENSE.txt)
* and GPL (GPL-LICENSE.txt) licenses.
*
* $Date: 2008-05-24 14:22:17 -0400 (Sat, 24 May 2008) $
* $Rev: 5685 $
*/
// Map over jQuery in case of overwrite
var _jQuery = window.jQuery,
// Map over the $ in case of overwrite
_$ = window.$;
var jQuery = window.jQuery = window.$ = function( selector, context ) {
// The jQuery object is actually just the init constructor 'enhanced'
return new jQuery.fn.init( selector, context );
};
// A simple way to check for HTML strings or ID strings
// (both of which we optimize for)
var quickExpr = /^[^<]*(<(.|/s)+>)[^>]*$|^#(/w+)$/,
// Is it a simple selector
isSimple = /^.[^:#/[/.]*$/,
// Will speed up references to undefined, and allows munging its name.
undefined;
jQuery.fn = jQuery.prototype = {
init: function( selector, context ) {
// Make sure that a selection was provided
selector = selector || document;
// Handle $(DOMElement)
if ( selector.nodeType ) {
this[0] = selector;
this.length = 1;
return this;
}
// Handle HTML strings
if ( typeof selector == "string" ) {
// Are we dealing with HTML string or an ID?
var match = quickExpr.exec( selector );
// Verify a match, and that no context was specified for #id
if ( match && (match[1] || !context) ) {
// HANDLE: $(html) -> $(array)
if ( match[1] )
selector = jQuery.clean( [ match[1] ], context );
// HANDLE: $("#id")
else {
var elem = document.getElementById( match[3] );
// Make sure an element was located
if ( elem ){
// Handle the case where IE and Opera return items
// by name instead of ID
if ( elem.id != match[3] )
return jQuery().find( selector );
// Otherwise, we inject the element directly into the jQuery object
return jQuery( elem );
}
selector = [];
}
// HANDLE: $(expr, [context])
// (which is just equivalent to: $(content).find(expr)
} else
return jQuery( context ).find( selector );
// HANDLE: $(function)
// Shortcut for document ready
} else if ( jQuery.isFunction( selector ) )
return jQuery( document )[ jQuery.fn.ready ? "ready" : "load" ]( selector );
return this.setArray(jQuery.makeArray(selector));
},
// The current version of jQuery being used
jquery: "1.2.6",
// The number of elements contained in the matched element set
size: function() {
return this.length;
},
// The number of elements contained in the matched element set
length: 0,
// Get the Nth element in the matched element set OR
// Get the whole matched element set as a clean array
get: function( num ) {
return num == undefined ?
// Return a 'clean' array
jQuery.makeArray( this ) :
// Return just the object
this[ num ];
},
// Take an array of elements and push it onto the stack
// (returning the new matched element set)
pushStack: function( elems ) {
// Build a new jQuery matched element set
var ret = jQuery( elems );
// Add the old object onto the stack (as a reference)
ret.prevObject = this;
// Return the newly-formed element set
return ret;
},
// Force the current matched set of elements to become
// the specified array of elements (destroying the stack in the process)
// You should use pushStack() in order to do this, but maintain the stack
setArray: function( elems ) {
// Resetting the length to 0, then using the native Array push
// is a super-fast way to populate an object with array-like properties
this.length = 0;
Array.prototype.push.apply( this, elems );
return this;
},
// Execute a callback for every element in the matched set.
// (You can seed the arguments with an array of args, but this is
// only used internally.)
each: function( callback, args ) {
return jQuery.each( this, callback, args );
},
// Determine the position of an element within
// the matched set of elements
index: function( elem ) {
var ret = -1;
// Locate the position of the desired element
return jQuery.inArray(
// If it receives a jQuery object, the first element is used
elem && elem.jquery ? elem[0] : elem
, this );
},
attr: function( name, value, type ) {
var options = name;
// Look for the case where we're accessing a style value
if ( name.constructor == String )
if ( value === undefined )
return this[0] && jQuery[ type || "attr" ]( this[0], name );
else {
options = {};
options[ name ] = value;
}
// Check to see if we're setting style values
return this.each(function(i){
// Set all the styles
for ( name in options )
jQuery.attr(
type ?
this.style :
this,
name, jQuery.prop( this, options[ name ], type, i, name )
);
});
},
css: function( key, value ) {
// ignore negative width and height values
if ( (key == 'width' || key == 'height') && parseFloat(value) < 0 )
value = undefined;
return this.attr( key, value, "curCSS" );
},
text: function( text ) {
if ( typeof text != "object" && text != null )
return this.empty().append( (this[0] && this[0].ownerDocument || document).createTextNode( text ) );
var ret = "";
jQuery.each( text || this, function(){
jQuery.each( this.childNodes, function(){
if ( this.nodeType != 8 )
ret += this.nodeType != 1 ?
this.nodeValue :
jQuery.fn.text( [ this ] );
});
});
return ret;
},
wrapAll: function( html ) {
if ( this[0] )
// The elements to wrap the target around
jQuery( html, this[0].ownerDocument )
.clone()
.insertBefore( this[0] )
.map(function(){
var elem = this;
while ( elem.firstChild )
elem = elem.firstChild;
return elem;
})
.append(this);
return this;
},
wrapInner: function( html ) {
return this.each(function(){
jQuery( this ).contents().wrapAll( html );
});
},
wrap: function( html ) {
return this.each(function(){
jQuery( this ).wrapAll( html );
});
},
append: function() {
return this.domManip(arguments, true, false, function(elem){
if (this.nodeType == 1)
this.appendChild( elem );
});
},
prepend: function() {
return this.domManip(arguments, true, true, function(elem){
if (this.nodeType == 1)
this.insertBefore( elem, this.firstChild );
});
},
before: function() {
return this.domManip(arguments, false, false, function(elem){
this.parentNode.insertBefore( elem, this );
});
},
after: function() {
return this.domManip(arguments, false, true, function(elem){
this.parentNode.insertBefore( elem, this.nextSibling );
});
},
end: function() {
return this.prevObject || jQuery( [] );
},
find: function( selector ) {
var elems = jQuery.map(this, function(elem){
return jQuery.find( selector, elem );
});
return this.pushStack( /[^+>] [^+>]/.test( selector ) || selector.indexOf("..") > -1 ?
jQuery.unique( elems ) :
elems );
},
clone: function( events ) {
// Do the clone
var ret = this.map(function(){
if ( jQuery.browser.msie && !jQuery.isXMLDoc(this) ) {
// IE copies events bound via attachEvent when
// using cloneNode. Calling detachEvent on the
// clone will also remove the events from the orignal
// In order to get around this, we use innerHTML.
// Unfortunately, this means some modifications to
// attributes in IE that are actually only stored
// as properties will not be copied (such as the
// the name attribute on an input).
var clone = this.cloneNode(true),
container = document.createElement("div");
container.appendChild(clone);
return jQuery.clean([container.innerHTML])[0];
} else
return this.cloneNode(true);
});
// Need to set the expando to null on the cloned set if it exists
// removeData doesn't work here, IE removes it from the original as well
// this is primarily for IE but the data expando shouldn't be copied over in any browser
var clone = ret.find("*").andSelf().each(function(){
if ( this[ expando ] != undefined )
this[ expando ] = null;
});
// Copy the events from the original to the clone
if ( events === true )
this.find("*").andSelf().each(function(i){
if (this.nodeType == 3)
return;
var events = jQuery.data( this, "events" );
for ( var type in events )
for ( var handler in events[ type ] )
jQuery.event.add( clone[ i ], type, events[ type ][ handler ], events[ type ][ handler ].data );
});
// Return the cloned set
return ret;
},
filter: function( selector ) {
return this.pushStack(
jQuery.isFunction( selector ) &&
jQuery.grep(this, function(elem, i){
return selector.call( elem, i );
}) ||
jQuery.multiFilter( selector, this ) );
},
not: function( selector ) {
if ( selector.constructor == String )
// test special case where just one selector is passed in
if ( isSimple.test( selector ) )
return this.pushStack( jQuery.multiFilter( selector, this, true ) );
else
selector = jQuery.multiFilter( selector, this );
var isArrayLike = selector.length && selector[selector.length - 1] !== undefined && !selector.nodeType;
return this.filter(function() {
return isArrayLike ? jQuery.inArray( this, selector ) < 0 : this != selector;
});
},
add: function( selector ) {
return this.pushStack( jQuery.unique( jQuery.merge(
this.get(),
typeof selector == 'string' ?
jQuery( selector ) :
jQuery.makeArray( selector )
)));
},
is: function( selector ) {
return !!selector && jQuery.multiFilter( selector, this ).length > 0;
},
hasClass: function( selector ) {
return this.is( "." + selector );
},
val: function( value ) {
if ( value == undefined ) {
if ( this.length ) {
var elem = this[0];
// We need to handle select boxes special
if ( jQuery.nodeName( elem, "select" ) ) {
var index = elem.selectedIndex,
values = [],
options = elem.options,
one = elem.type == "select-one";
// Nothing was selected
if ( index < 0 )
return null;
// Loop through all the selected options
for ( var i = one ? index : 0, max = one ? index + 1 : options.length; i < max; i++ ) {
var option = options[ i ];
if ( option.selected ) {
// Get the specifc value for the option
value = jQuery.browser.msie && !option.attributes.value.specified ? option.text : option.value;
// We don't need an array for one selects
if ( one )
return value;
// Multi-Selects return an array
values.push( value );
}
}
return values;
// Everything else, we just grab the value
} else
return (this[0].value || "").replace(//r/g, "");
}
return undefined;
}
if( value.constructor == Number )
value += '';
return this.each(function(){
if ( this.nodeType != 1 )
return;
if ( value.constructor == Array && /radio|checkbox/.test( this.type ) )
this.checked = (jQuery.inArray(this.value, value) >= 0 ||
jQuery.inArray(this.name, value) >= 0);
else if ( jQuery.nodeName( this, "select" ) ) {
var values = jQuery.makeArray(value);
jQuery( "option", this ).each(function(){
this.selected = (jQuery.inArray( this.value, values ) >= 0 ||
jQuery.inArray( this.text, values ) >= 0);
});
if ( !values.length )
this.selectedIndex = -1;
} else
this.value = value;
});
},
html: function( value ) {
return value == undefined ?
(this[0] ?
this[0].innerHTML :
null) :
this.empty().append( value );
},
replaceWith: function( value ) {
return this.after( value ).remove();
},
eq: function( i ) {
return this.slice( i, i + 1 );
},
slice: function() {
return this.pushStack( Array.prototype.slice.apply( this, arguments ) );
},
map: function( callback ) {
return this.pushStack( jQuery.map(this, function(elem, i){
return callback.call( elem, i, elem );
}));
},
andSelf: function() {
return this.add( this.prevObject );
},
data: function( key, value ){
var parts = key.split(".");
parts[1] = parts[1] ? "." + parts[1] : "";
if ( value === undefined ) {
var data = this.triggerHandler("getData" + parts[1] + "!", [parts[0]]);
if ( data === undefined && this.length )
data = jQuery.data( this[0], key );
return data === undefined && parts[1] ?
this.data( parts[0] ) :
data;
} else
return this.trigger("setData" + parts[1] + "!", [parts[0], value]).each(function(){
jQuery.data( this, key, value );
});
},
removeData: function( key ){
return this.each(function(){
jQuery.removeData( this, key );
});
},
domManip: function( args, table, reverse, callback ) {
var clone = this.length > 1, elems;
return this.each(function(){
if ( !elems ) {
elems = jQuery.clean( args, this.ownerDocument );
if ( reverse )
elems.reverse();
}
var obj = this;
if ( table && jQuery.nodeName( this, "table" ) && jQuery.nodeName( elems[0], "tr" ) )
obj = this.getElementsByTagName("tbody")[0] || this.appendChild( this.ownerDocument.createElement("tbody") );
var scripts = jQuery( [] );
jQuery.each(elems, function(){
var elem = clone ?
jQuery( this ).clone( true )[0] :
this;
// execute all scripts after the elements have been injected
if ( jQuery.nodeName( elem, "script" ) )
scripts = scripts.add( elem );
else {
// Remove any inner scripts for later evaluation
if ( elem.nodeType == 1 )
scripts = scripts.add( jQuery( "script", elem ).remove() );
// Inject the elements into the document
callback.call( obj, elem );
}
});
scripts.each( evalScript );
});
}
};
// Give the init function the jQuery prototype for later instantiation
jQuery.fn.init.prototype = jQuery.fn;
function evalScript( i, elem ) {
if ( elem.src )
jQuery.ajax({
url: elem.src,
async: false,
dataType: "script"
});
else
jQuery.globalEval( elem.text || elem.textContent || elem.innerHTML || "" );
if ( elem.parentNode )
elem.parentNode.removeChild( elem );
}
function now(){
return +new Date;
}
jQuery.extend = jQuery.fn.extend = function() {
// copy reference to target object
var target = arguments[0] || {}, i = 1, length = arguments.length, deep = false, options;
// Handle a deep copy situation
if ( target.constructor == Boolean ) {
deep = target;
target = arguments[1] || {};
// skip the boolean and the target
i = 2;
}
// Handle case when target is a string or something (possible in deep copy)
if ( typeof target != "object" && typeof target != "function" )
target = {};
// extend jQuery itself if only one argument is passed
if ( length == i ) {
target = this;
--i;
}
for ( ; i < length; i++ )
// Only deal with non-null/undefined values
if ( (options = arguments[ i ]) != null )
// Extend the base object
for ( var name in options ) {
var src = target[ name ], copy = options[ name ];
// Prevent never-ending loop
if ( target === copy )
continue;
// Recurse if we're merging object values
if ( deep && copy && typeof copy == "object" && !copy.nodeType )
target[ name ] = jQuery.extend( deep,
// Never move original objects, clone them
src || ( copy.length != null ? [ ] : { } )
, copy );
// Don't bring in undefined values
else if ( copy !== undefined )
target[ name ] = copy;
}
// Return the modified object
return target;
};
var expando = "jQuery" + now(), uuid = 0, windowData = {},
// exclude the following css properties to add px
exclude = /z-?index|font-?weight|opacity|zoom|line-?height/i,
// cache defaultView
defaultView = document.defaultView || {};
jQuery.extend({
noConflict: function( deep ) {
window.$ = _$;
if ( deep )
window.jQuery = _jQuery;
return jQuery;
},
// See test/unit/core.js for details concerning this function.
isFunction: function( fn ) {
return !!fn && typeof fn != "string" && !fn.nodeName &&
fn.constructor != Array && /^[/s[]?function/.test( fn + "" );
},
// check if an element is in a (or is an) XML document
isXMLDoc: function( elem ) {
return elem.documentElement && !elem.body ||
elem.tagName && elem.ownerDocument && !elem.ownerDocument.body;
},
// Evalulates a script in a global context
globalEval: function( data ) {
data = jQuery.trim( data );
if ( data ) {
// Inspired by code by Andrea Giammarchi
// http://webreflection.blogspot.com/2007/08/global-scope-evaluation-and-dom.html
var head = document.getElementsByTagName("head")[0] || document.documentElement,
script = document.createElement("script");
script.type = "text/javascript";
if ( jQuery.browser.msie )
script.text = data;
else
script.appendChild( document.createTextNode( data ) );
// Use insertBefore instead of appendChild to circumvent an IE6 bug.
// This arises when a base node is used (#2709).
head.insertBefore( script, head.firstChild );
head.removeChild( script );
}
},
nodeName: function( elem, name ) {
return elem.nodeName && elem.nodeName.toUpperCase() == name.toUpperCase();
},
cache: {},
data: function( elem, name, data ) {
elem = elem == window ?
windowData :
elem;
var id = elem[ expando ];
// Compute a unique ID for the element
if ( !id )
id = elem[ expando ] = ++uuid;
// Only generate the data cache if we're
// trying to access or manipulate it
if ( name && !jQuery.cache[ id ] )
jQuery.cache[ id ] = {};
// Prevent overriding the named cache with undefined values
if ( data !== undefined )
jQuery.cache[ id ][ name ] = data;
// Return the named cache data, or the ID for the element
return name ?
jQuery.cache[ id ][ name ] :
id;
},
removeData: function( elem, name ) {
elem = elem == window ?
windowData :
elem;
var id = elem[ expando ];
// If we want to remove a specific section of the element's data
if ( name ) {
if ( jQuery.cache[ id ] ) {
// Remove the section of cache data
delete jQuery.cache[ id ][ name ];
// If we've removed all the data, remove the element's cache
name = "";
for ( name in jQuery.cache[ id ] )
break;
if ( !name )
jQuery.removeData( elem );
}
// Otherwise, we want to remove all of the element's data
} else {
// Clean up the element expando
try {
delete elem[ expando ];
} catch(e){
// IE has trouble directly removing the expando
// but it's ok with using removeAttribute
if ( elem.removeAttribute )
elem.removeAttribute( expando );
}
// Completely remove the data cache
delete jQuery.cache[ id ];
}
},
// args is for internal usage only
each: function( object, callback, args ) {
var name, i = 0, length = object.length;
if ( args ) {
if ( length == undefined ) {
for ( name in object )
if ( callback.apply( object[ name ], args ) === false )
break;
} else
for ( ; i < length; )
if ( callback.apply( object[ i++ ], args ) === false )
break;
// A special, fast, case for the most common use of each
} else {
if ( length == undefined ) {
for ( name in object )
if ( callback.call( object[ name ], name, object[ name ] ) === false )
break;
} else
for ( var value = object[0];
i < length && callback.call( value, i, value ) !== false; value = object[++i] ){}
}
return object;
},
prop: function( elem, value, type, i, name ) {
// Handle executable functions
if ( jQuery.isFunction( value ) )
value = value.call( elem, i );
// Handle passing in a number to a CSS property
return value && value.constructor == Number && type == "curCSS" && !exclude.test( name ) ?
value + "px" :
value;
},
className: {
// internal only, use addClass("class")
add: function( elem, classNames ) {
jQuery.each((classNames || "").split(//s+/), function(i, className){
if ( elem.nodeType == 1 && !jQuery.className.has( elem.className, className ) )
elem.className += (elem.className ? " " : "") + className;
});
},
// internal only, use removeClass("class")
remove: function( elem, classNames ) {
if (elem.nodeType == 1)
elem.className = classNames != undefined ?
jQuery.grep(elem.className.split(//s+/), function(className){
return !jQuery.className.has( classNames, className );
}).join(" ") :
"";
},
// internal only, use hasClass("class")
has: function( elem, className ) {
return jQuery.inArray( className, (elem.className || elem).toString().split(//s+/) ) > -1;
}
},
// A method for quickly swapping in/out CSS properties to get correct calculations
swap: function( elem, options, callback ) {
var old = {};
// Remember the old values, and insert the new ones
for ( var name in options ) {
old[ name ] = elem.style[ name ];
elem.style[ name ] = options[ name ];
}
callback.call( elem );
// Revert the old values
for ( var name in options )
elem.style[ name ] = old[ name ];
},
css: function( elem, name, force ) {
if ( name == "width" || name == "height" ) {
var val, props = { position: "absolute", visibility: "hidden", display:"block" }, which = name == "width" ? [ "Left", "Right" ] : [ "Top", "Bottom" ];
function getWH() {
val = name == "width" ? elem.offsetWidth : elem.offsetHeight;
var padding = 0, border = 0;
jQuery.each( which, function() {
padding += parseFloat(jQuery.curCSS( elem, "padding" + this, true)) || 0;
border += parseFloat(jQuery.curCSS( elem, "border" + this + "Width", true)) || 0;
});
val -= Math.round(padding + border);
}
if ( jQuery(elem).is(":visible") )
getWH();
else
jQuery.swap( elem, props, getWH );
return Math.max(0, val);
}
return jQuery.curCSS( elem, name, force );
},
curCSS: function( elem, name, force ) {
var ret, style = elem.style;
// A helper method for determining if an element's values are broken
function color( elem ) {
if ( !jQuery.browser.safari )
return false;
// defaultView is cached
var ret = defaultView.getComputedStyle( elem, null );
return !ret || ret.getPropertyValue("color") == "";
}
// We need to handle opacity special in IE
if ( name == "opacity" && jQuery.browser.msie ) {
ret = jQuery.attr( style, "opacity" );
return ret == "" ?
"1" :
ret;
}
// Opera sometimes will give the wrong display answer, this fixes it, see #2037
if ( jQuery.browser.opera && name == "display" ) {
var save = style.outline;
style.outline = "0 solid black";
style.outline = save;
}
// Make sure we're using the right name for getting the float value
if ( name.match( /float/i ) )
name = styleFloat;
if ( !force && style && style[ name ] )
ret = style[ name ];
else if ( defaultView.getComputedStyle ) {
// Only "float" is needed here
if ( name.match( /float/i ) )
name = "float";
name = name.replace( /([A-Z])/g, "-$1" ).toLowerCase();
var computedStyle = defaultView.getComputedStyle( elem, null );
if ( computedStyle && !color( elem ) )
ret = computedStyle.getPropertyValue( name );
// If the element isn't reporting its values properly in Safari
// then some display: none elements are involved
else {
var swap = [], stack = [], a = elem, i = 0;
// Locate all of the parent display: none elements
for ( ; a && color(a); a = a.parentNode )
stack.unshift(a);
// Go through and make them visible, but in reverse
// (It would be better if we knew the exact display type that they had)
for ( ; i < stack.length; i++ )
if ( color( stack[ i ] ) ) {
swap[ i ] = stack[ i ].style.display;
stack[ i ].style.display = "block";
}
// Since we flip the display style, we have to handle that
// one special, otherwise get the value
ret = name == "display" && swap[ stack.length - 1 ] != null ?
"none" :
( computedStyle && computedStyle.getPropertyValue( name ) ) || "";
// Finally, revert the display styles back
for ( i = 0; i < swap.length; i++ )
if ( swap[ i ] != null )
stack[ i ].style.display = swap[ i ];
}
// We should always get a number back from opacity
if ( name == "opacity" && ret == "" )
ret = "1";
} else if ( elem.currentStyle ) {
var camelCase = name.replace(//-(/w)/g, function(all, letter){
return letter.toUpperCase();
});
ret = elem.currentStyle[ name ] || elem.currentStyle[ camelCase ];
// From the awesome hack by Dean Edwards
// http://erik.eae.net/archives/2007/07/27/18.54.15/#comment-102291
// If we're not dealing with a regular pixel number
// but a number that has a weird ending, we need to convert it to pixels
if ( !/^/d+(px)?$/i.test( ret ) && /^/d/.test( ret ) ) {
// Remember the original values
var left = style.left, rsLeft = elem.runtimeStyle.left;
// Put in the new values to get a computed value out
elem.runtimeStyle.left = elem.currentStyle.left;
style.left = ret || 0;
ret = style.pixelLeft + "px";
// Revert the changed values
style.left = left;
elem.runtimeStyle.left = rsLeft;
}
}
return ret;
},
clean: function( elems, context ) {
var ret = [];
context = context || document;
// !context.createElement fails in IE with an error but returns typeof 'object'
if (typeof context.createElement == 'undefined')
context = context.ownerDocument || context[0] && context[0].ownerDocument || document;
jQuery.each(elems, function(i, elem){
if ( !elem )
return;
if ( elem.constructor == Number )
elem += '';
// Convert html string into DOM nodes
if ( typeof elem == "string" ) {
// Fix "XHTML"-style tags in all browsers
elem = elem.replace(/(<(/w+)[^>]*?)//>/g, function(all, front, tag){
return tag.match(/^(abbr|br|col|img|input|link|meta|param|hr|area|embed)$/i) ?
all :
front + ">";
});
// Trim whitespace, otherwise indexOf won't work as expected
var tags = jQuery.trim( elem ).toLowerCase(), div = context.createElement("div");
var wrap =
// option or optgroup
!tags.indexOf("", "" ] ||
!tags.indexOf("", "" ] ||
tags.match(/^<(thead|tbody|tfoot|colg|cap)/) &&
[ 1, "
(function(){ /* * jQuery 1.2.6 - New Wave Javascript * * Copyright (c) 2008 John Resig (jquery.com) * Dual licensed under the MIT (MIT-LICENSE.txt) * and GPL (GPL-LICENSE
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml&q
// for循环的进化
// 菜鸟
for (var i = 0; i < Things.length ; i++) {
// Things[i]
}
// 老鸟
for (var i = 0, len = Things.length; i < len; i++) {
// Things[i]
}
// 大师
for (var i = Things.le
the idea is from:
http://blog.csdn.net/zhanxinhang/article/details/6731134
public class MaxSubMatrix {
/**see http://blog.csdn.net/zhanxinhang/article/details/6731134
* Q35
求一个矩阵中最大的二维
使用cordova可以很方便的在手机sdcard中读写文件。
首先需要安装cordova插件：file
命令为：
cordova plugin add org.apache.cordova.file
然后就可以读写文件了，这里我先是写入一个文件，具体的JS代码为：
var datas=null;//datas need write
var directory=&
SELECT cust_id,
SUM(price) as total
FROM orders
WHERE status = 'A'
GROUP BY cust_id
HAVING total > 250
db.orders.aggregate( [
{ $match: { status: 'A' } },
{
$group: {
