javascript基础模块.doc

1 创建脚本块 1: script language=”JavaScript” 2: JavaScript code goes here 3: /script 2 隐藏脚本代码 1: script language=”JavaScript” 2: !-- 3: document.write(“Hello”); 4: // -- 5: /script 在不支持JavaScript的浏览器中将不执行相关代码 3 浏览器不支持的时候显示 1: noscript 2: Hello to the non-JavaScript browser. 3: /noscript 4 链接外部脚本文件 1: script language=”JavaScript” src=/”filename.js”/script 5 注释脚本 1: // This is a comment 2: document.write(“Hello”); // This is a comment 3: /* 4: All of this 5: is a comment 6: */ 6 输出到浏览器 1: document.write(“strongHello/strong”); 7 定义变量 1: var myVariable = “some value”; 8 字符串相加 1: var myString = “String1” + “String2”; 9 字符串有哪些信誉好的足球投注网站 1: script language=”JavaScript” 2: !-- 3: var myVariable = “Hello there”; 4: var therePlace = myVariable.search(“there”); 5: document.write(therePlace); 6: // -- 7: /script 10 字符串替换 1: thisVar.replace(“Monday”,”Friday”); 本文出自 51CTO.COM技术博客 11 格式化字串 1: script language=”JavaScript” 2: !-- 3: var myVariable = “Hello there”; 4: document.write(myVariable.big() + “br”); 5: document.write(myVariable.blink() + “br”); 6: document.write(myVariable.bold() + “br”); 7: document.write(myVariable.fixed() + “br”); 8: document.write(myVariable.fontcolor(“red”) + “br”); 9: document.write(myVariable.fontsize(“18pt”) + “br”); 10: document.write(myVariable.italics() + “br”); 11: document.write(myVariable.small() + “br”); 12: document.write(myVariable.strike() + “br”); 13: document.write(myVariable.sub() + “br”); 14: document.write(myVariable.sup() + “br”); 15: document.write(myVariable.toLowerCase() + “br”); 16: document.write(myVariable.toUpperCase() + “br”); 17: 18: var firstString = “My String”; 19: var finalString = firstString.bold().toLowerCase().fontcolor(“red”); 20: // -- 21: /script 12 创建数组 1: script language=”JavaScript” 2: !-- 3: var myArray = new Array(5); 4: myArray[0] = “First Entry”; 5: myArray[1] = “Second Entry”; 6: myArray[2] = “Third Entry”; 7: myAr