132.判断是什么对象 if(typeof(unknown)=="function")return true; if(typeof(unknown)!="object")return false;// 133.取消文本框自动完成功能 // 134.让下拉框自动下拉 // 135.读取XML文件 var childrenobj=myselect//document.all.myselect; var oXMLDoc = new ActiveXObject('MSXML'); oXMLDoc.url = "mymsg.xml"; var oRoot=oXMLDoc.root; if(oRoot.children != null) { for(var i=0;i杭州地区温州地区台州地区丽水地区// 136.点击图片，图片停止 // 137.显示本地计算机信息 var WshNetwork = new ActiveXObject("WScript.Network"); alert("Domain = " + WshNetwork.UserDomain); alert("Computer Name = " + WshNetwork.ComputerName); alert("User Name = " + WshNetwork.UserName);// 138.比较时间 tDate = new Date(2004,01,08,14,35); //年,月，日，时，分 dDate = new Date(); tDatedddd// 140.注意不能通过与 undefined 做比较来测试一个变量是否存在，虽然可以检查它的类型是否为“undefined”。在以 下的代码范例中，假设程序员想测试是否已经声明变量 x ： // 这种方法不起作用 if (x == undefined) // 作某些操作 // 这个方法同样不起作用- 必须检查 // 字符串 "undefined" if (typeof(x) == undefined) // 作某些操作 // 这个方法有效 if (typeof(x) == "undefined") // 作某些操作 141.创建具有某些属性的对象 var myObject = new Object(); myObject.name = "James"; myObject.age = "22"; myObject.phone = "555 1234";// 142.枚举（循环）对象的所有属性 for (var a in myObject) { // 显示 "The property 'name' is James"，等等。 window.alert("The property '" + a + "' is " + myObject[a]); }// 143.判断一个数字是否是整数 var a=23.2; alert(a%1==1)// 144.新建日期型变量 var a = new Date(2000, 1, 1); alert(a.toLocaleDateString()); 145.给类定义新的方法 function trim_1() { return this.replace(/(^/s*)|(/s*$)/g, ""); } String.prototype.trim=trim_1; alert('cindy'.trim()); 146.定义一个将日期类型转化为字符串的方法 function guoguo_date() { var tmp1,tmp2; tmp1 =this.getMonth()+1+""; if(tmp1.length<2) tmp1="0"+tmp1; tmp2 =this.getDate()+""; if(tmp2.length<2) tmp2="0"+tmp2; return this.getYear()+"-"+tmp1+"-"+tmp2; } Date.prototype.toLiteString=guoguo_date; alert(new Date().toLiteString()) 147. pasta 是有四个参数的构造器,定义对象。 function pasta(grain, width, shape, hasEgg) { // 是用什么粮食做的？ this.grain = grain; // 多宽？（数值） this.width = width; // 横截面形状？（字符串） this.shape = shape; // 是否加蛋黄？（boolean） this.hasEgg = hasEgg; //定义方法 this.toString=aa; } function aa() { ; } //定义了对象构造器后，用 new 运算符创建对象实例。 var spaghetti = new pasta("wheat", 0.2, "circle", true); var linguine = new pasta("wheat", 0.3, "oval", true); //补充定义属性，spaghetti和linguine都将自动获得新的属性 pasta.prototype.foodgroup = "carbohydrates"; 148.打印出错误原因 try { x = y // 产生错误。 } catch(e) { document.write(e.description) //打印 "'y' is undefined". }// 149.生成Excel文件并保存 var ExcelSheet; ExcelApp = new ActiveXObject("Excel.Application"); ExcelSheet = new ActiveXObject("Excel.Sheet"); //本代码启动创建对象的应用程序（在这种情况下，Microsoft Excel 工作表）。一旦对象被创建，就可以用定义的对 象变量在代码中引用它。 在下面的例子中，通过对象变量 ExcelSheet 访问新对象的属性和方法和其他 Excel 对象， 包括 Application 对象和 ActiveSheet.Cells 集合。 // 使 Excel 通过 Application 对象可见。 ExcelSheet.Application.Visible = true; // 将一些文本放置到表格的第一格中。 ExcelSheet.ActiveSheet.Cells(1,1).Value = "This is column A, row 1"; // 保存表格。 ExcelSheet.SaveAs("C://TEST.XLS"); // 用 Application 对象用 Quit 方法关闭 Excel。 ExcelSheet.Application.Quit();// 150.根据标签获得一组对象 var coll = document.all.tags("DIV"); if (coll!=null) { for (i=0; i // 152.不通过form，直接通过名字引用对象 // 153.使鼠标滚轮失效 function document.onmousewheel() { return false; }// 154.创建弹出窗口 // 155.取得鼠标所在处的对象 var obj = document.elementFromPoint(event.x,event.y);// 156.获得左边的对象 // 157.定位鼠标 document.all.hint_layer.style.left = event.x+document.body.scrollLeft+10; document.all.hint_layer.style.top = event.y+document.body.scrollTop+10;// 158.向下拉框指定位置添加项目 var op = document.createElement("OPTION"); document.all.selected_items.children(index).insertAdjacentElement("BeforeBegin",op); op.text = document.all.all_items.text; op.value = document.all.all_items.value;// 159.判断一个窗口是否已经打开，如果已经打开，则关闭之 var a; if(a) a.close(); else a=window.open('','','');// 160.动态创建一个标签 newElem = document.createElement("DIV"); newElem.id = "hint_layer"; document.body.appendChild(newElem); document.all.hint_layer.innerText="guoguo";// 161.标题栏 document.title// 162.背景图片 //背景图片不动 //背景图片居中 163.设置透明效果 document.form.xxx.filters.alpha.opacity=0～100// 164.定义方法 var dragapproved=false; document.οnmοuseup=new Function("dragapproved = false");// 165.将数字转化为人民币大写形式 function convertCurrency(currencyDigits) { // Constants: var MAXIMUM_NUMBER = 99999999999.99; // Predefine the radix characters and currency symbols for output: var CN_ZERO = "零"; var CN_ONE = "壹"; var CN_TWO = "贰"; var CN_THREE = "叁"; var CN_FOUR = "肆"; var CN_FIVE = "伍"; var CN_SIX = "陆"; var CN_SEVEN = "柒"; var CN_EIGHT = "捌"; var CN_NINE = "玖"; var CN_TEN = "拾"; var CN_HUNDRED = "佰"; var CN_THOUSAND = "仟"; var CN_TEN_THOUSAND = "万"; var CN_HUNDRED_MILLION = "亿"; var CN_SYMBOL = "人民币"; var CN_DOLLAR = "元"; var CN_TEN_CENT = "角"; var CN_CENT = "分"; var CN_INTEGER = "整"; // Variables: var integral; // Represent integral part of digit number. var decimal; // Represent decimal part of digit number. var outputCharacters; // The output result. var parts; var digits, radices, bigRadices, decimals; var zeroCount; var i, p, d; var quotient, modulus; // Validate input string: currencyDigits = currencyDigits.toString(); if (currencyDigits == "") { alert("Empty input!"); return ""; } if (currencyDigits.match(/[^,./d]/) != null) { alert("Invalid characters in the input string!"); return ""; } if ((currencyDigits).match(/^((/d{1,3}(,/d{3})*(.((/d{3},)*/d{1,3}))?)|(/d+(./d+)?))$/) == null) { alert("Illegal format of digit number!"); return ""; } // Normalize the format of input digits: currencyDigits = currencyDigits.replace(/,/g, ""); // Remove comma delimiters. currencyDigits = currencyDigits.replace(/^0+/, ""); // Trim zeros at the beginning. // Assert the number is not greater than the maximum number. if (Number(currencyDigits) > MAXIMUM_NUMBER) { alert("Too large a number to convert!"); return ""; } // http://www.knowsky.com/ Process the coversion from currency digits to characters: // Separate integral and decimal parts before processing coversion: parts = currencyDigits.split("."); if (parts.length > 1) { integral = parts[0]; decimal = parts[1]; // Cut down redundant decimal digits that are after the second. decimal = decimal.substr(0, 2); } else { integral = parts[0]; decimal = ""; } // Prepare the characters corresponding to the digits: digits = new Array(CN_ZERO, CN_ONE, CN_TWO, CN_THREE, CN_FOUR, CN_FIVE, CN_SIX, CN_SEVEN, CN_EIGHT, CN_NINE); radices = new Array("", CN_TEN, CN_HUNDRED, CN_THOUSAND); bigRadices = new Array("", CN_TEN_THOUSAND, CN_HUNDRED_MILLION); decimals = new Array(CN_TEN_CENT, CN_CENT); // Start processing: outputCharacters = ""; // Process integral part if it is larger than 0: if (Number(integral) > 0) { zeroCount = 0; for (i = 0; i < integral.length; i++) { p = integral.length - i - 1; d = integral.substr(i, 1); quotient = p / 4; modulus = p % 4; if (d == "0") { zeroCount++; } else { if (zeroCount > 0) { outputCharacters += digits[0]; } zeroCount = 0; outputCharacters += digits[Number(d)] + radices[modulus]; } if (modulus == 0 && zeroCount < 4) { outputCharacters += bigRadices[quotient]; } } outputCharacters += CN_DOLLAR; } // Process decimal part if there is: if (decimal != "") { for (i = 0; i < decimal.length; i++) { d = decimal.substr(i, 1); if (d != "0") { outputCharacters += digits[Number(d)] + decimals; } } } // Confirm and return the final output string: if (outputCharacters == "") { outputCharacters = CN_ZERO + CN_DOLLAR; } if (decimal == "") { outputCharacters += CN_INTEGER; } outputCharacters = CN_SYMBOL + outputCharacters; return outputCharacters; }// 166.xml数据岛绑定表格
系统中统计数据，由于调用统计过程，执行时间超过了weblogic设置的时间，提示如下错误：
统计数据出错!
原因：The transaction is no longer active - status: 'Rolling Back. [Reason=weblogic.transaction.internal
Totally five patchs committed to erlang otp, just small patchs.
IMO, erlang really is a interesting programming language, I really like its concurrency feature.
but the functional programming style
两个步骤：
1.用w命令找到要踢出的用户，比如下面：
[root@localhost ~]# w
18:16:55 up 39 days, 8:27, 3 users, load average: 0.03, 0.03, 0.00
USER TTY FROM LOGIN@ IDLE JCPU PCPU WHAT
package edu.xidian.graph;
class MyStack {
private final int SIZE = 20;
private int[] st;
private int top;
public MyStack() {
st = new int[SIZE];
top = -1;
}
public void push(i
// 137.显示本地计算机信息 var WshNetwork = new ActiveXObject("WScript.Network"); alert("Domain = " + WshNetwork.UserDomain); alert("Computer Name = " + WshNetwork.ComputerName); alert("User Name = " + WshNetwork.UserName);// 138.比较时间 tDate = new Date(2004,01,08,14,35); //年,月，日，时，分 dDate = new Date(); tDate
// 228. //font_effect.htc