var rxhtmlTag = /<(?!area|br|col|embed|hr|img|input|link|meta|param)(([\w:]+)[^>]*)\/>/gi;
var strundefined=undefined;
var rtagName = /<([\w:]+)/;
var rtbody = /", "" ],
legend: [ 1, "" ],
area: [ 1, "" ],
param: [ 1, "" ],
thead: [ 1, "
", "
" ],
tr: [ 2, "
", "
" ],
col: [ 2, "
", "
" ],
td: [ 3, "
", "
" ],
// IE6-8 can't serialize link, script, style, or any html5 (NoScope) tags,
// unless wrapped in a div with non-breaking characters in front of it.
_default: support.htmlSerialize ? [ 0, "", "" ] : [ 1, "X
", "
" ]
}
//domManip调用方式：fragment = jQuery.buildFragment( args, this[ 0 ].ownerDocument, false, this );
function buildFragment1( elems, context, scripts, selection ) {
var j, elem, contains,
tmp, tag, tbody, wrap,
l = elems.length,
// Ensure a safe fragment
safe = createSafeFragment( context ),
nodes = [],
i = 0;
//循环elems对象
for ( ; i < l; i++ ) {
elem = elems[ i ];
//如果elem存在或者elem是0
if ( elem || elem === 0 ) {
// Add nodes directly
//如果是object那么直接放入nodes对象里面,以后直接添加到documentFragment中!
if ( jQuery.type( elem ) === "object" ) {
jQuery.merge( nodes, elem.nodeType ? [ elem ] : elem );
// Convert non-html into a text node
//rhtml = /<|&#?\w+;/
//把非html的内容转化为文本节点，也就是不是html标签，html标签要么开头是<要么开头是"&",构建文本节点!
} else if ( !rhtml.test( elem ) ) {
nodes.push( context.createTextNode( elem ) );
// Convert html into DOM nodes
} else {
//把html变成DOM节点，添加到safe的documentFragment上,这里是空元素!
tmp = tmp || safe.appendChild( context.createElement("div") );
// Deserialize a standard representation
//rtagName = /<([\w:]+)/获取标签名称
tag = (rtagName.exec( elem ) || [ "", "" ])[ 1 ].toLowerCase();
//打印[div,span]
//alert(tag);
//如果标签是options等标签
wrap = wrapMap[ tag ] || wrapMap._default;
//[0,,][0,,]
//alert(wrap)
//为元素添加内容
//rxhtmlTag = /<(?!area|br|col|embed|hr|img|input|link|meta|param)(([\w:]+)[^>]*)\/>/gi
//'.replace( rxhtmlTag, '<$1>' );输出
tmp.innerHTML = wrap[1] + elem.replace( rxhtmlTag, "<$1>" ) + wrap[2];
//打印[] []
// alert(tmp.innerHTML)
// Descend through wrappers to the right content
j = wrap[0];
//打印0，因为不再wrapMap中间
//alert(j);
//获取数组第一个元素，移动到添加内容的部分
while ( j-- ) {
tmp = tmp.lastChild;
}
// Manually add leading whitespace removed by IE
//手动添加被IE移除的开头的空白节点
if ( !support.leadingWhitespace && rleadingWhitespace.test( elem ) ) {
nodes.push( context.createTextNode( rleadingWhitespace.exec( elem )[0] ) );
}
// Remove IE's autoinserted from table fragments
//异常IE自动为table添加的tbody标签
if ( !support.tbody ) {
// String was a
, *may* have spurious
//rtbody = / or
//自己传入的是thread标签，
tmp = safe.lastChild;
//[object HTMLDivElement],[object HTMLDivElement]
//alert(tmp.outerHTML);
}//End of else
}//End of if
}//End of for
// Fix #11356: Clear elements from fragment
//最后一次保存了tmp，要清除，也就是这个documentFragment中作为工具的那个div
//也就是最外层的div可以被删除了
if ( tmp ) {
safe.removeChild( tmp );
}
// Reset defaultChecked for any radios and checkboxes
// about to be appended to the DOM in IE 6/7 (#8060)
if ( !support.appendChecked ) {
jQuery.grep( getAll( nodes, "input" ), fixDefaultChecked );
}
i = 0;
while ( (elem = nodes[ i++ ]) ) {
// #4087 - If origin and destination elements are the same, and this is
// that element, do not do anything
//如果传入了第四个参数，同时elem也在第四个参数里面，那么什么也不做!如domManip函数里面传入this
//也就是调用对象，所以说如果传入的对象已经在调用对象里面，那么什么也不做，见下面的例子：
if ( selection && jQuery.inArray( elem, selection ) !== -1 ) {
continue;
}
//创建的Element对象的document是否包括该元素!
contains = jQuery.contains( elem.ownerDocument, elem );
//打印false
// alert(contains);
// Append to fragment
//把创建的DOM对象放在fragment上面，同时找到这个DOM元素上面的所有的script标签!
tmp = getAll( safe.appendChild( elem ), "script" );
//如果这个创建的DOM对象在当前的document上面，那么在全局作用域里面执行JS代码,如果是通过标签建立的DOM那么这里是false
// Preserve script evaluation history
if ( contains ) {
setGlobalEval( tmp );
}
//如果调用buildFragment时候传入了script是集合那么把该DOM元素上的script添加进去!
//在parseHTML方法中调用是: jQuery.buildFragment( [ data ], context, scripts );这里面的script可以是数组
// Capture executables
if ( scripts ) {
j = 0;
while ( (elem = tmp[ j++ ]) ) {
//获取该创建的DOM对象的所有的script标签进行遍历!如果type是ecmascript或者javascript
if ( rscriptType.test( elem.type || "" ) ) {
//把这个创建的元素对象的script放入传入的第三个参数scripts集合中
scripts.push( elem );
}
}
}
}
tmp = null;
//把添加的safe返回，是documentFragment对象
return safe;
}
buildFragment1(["
public class Server
{
//用来存储所有连接上来的客户
private List<ServerThread> clients;
public static void main(String[] args)
{
Server s = new Server();
s.startServer(9988);
}
publi
I got serveral questions about auto.offset.reset. This configuration parameter governs how consumer read the message from Kafka when there is no initial offset in ZooKeeper or
two cursors.
Make the first cursor go K steps first.
/*
* 第 13 题：题目：输入一个单向链表，输出该链表中倒数第 k 个节点
*/
public void displayKthItemsBackWard(ListNode head,int k){
ListNode p1=head,p2=head;
一、sh 脚本不执行的原因
sh脚本不执行的原因 只有2个
1.权限不够
2.sh脚本里路径没写完整。
二、解决You have new mail in /var/spool/mail/root
修改/usr/share/logwatch/default.conf/logwatch.conf配置文件
MailTo =
MailFrom
三、查询连接数
$ git push joe prod-2295-1
To [email protected]:joe.le/dr-frontend.git
! [rejected] prod-2295-1 -> prod-2295-1 (non-fast-forward)
error: failed to push some refs to '[email protected]
