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1 var obj=document.getElementById(‘t1‘) 2 3 obj.innerText 4 5 obj.innerHTML
1.javascript
插入代码如下:
1 <script type="text/javascript"> 2 var name="server"; //#局部变量 3 age=18; /*#全局变量*/ 4 //for 5 var names=[‘alex‘,‘tony‘,‘rain‘]; 6 for(var i=0;i<names.length;i++){ 7 console.log(i); 8 console.log(names[i]); 9 } 10 console.log(‘----------‘) 11 for (var index in names){ 12 console.log(names[index]); 13 } 14 //alert(‘123‘); 15 console.log(‘----------‘) 16 var name2={‘name‘:‘alex‘,‘age‘:18} 17 for(var index in name2){ 18 19 console.log(index); 20 console.log(name2[index]); 21 } 22 //while 23 //while() 24 var name3=‘alex‘ 25 var age3=1; 26 //swithc,case 27 console.log(‘----------‘) 28 switch (name3){ 29 case ‘1‘: 30 31 age3=13; 32 console.log(age3) 33 break; 34 case ‘2‘: 35 age3=456; 36 console.log(age3) 37 break; 38 default: 39 age3=777; 40 console.log(age3) 41 } 42 console.log(‘----------‘) 43 //自执行函数 44 (function(arg){ 45 46 console.log(arg); 47 48 })(‘123‘ 49 50 </script>
文档对象模型(Document Object Model,DOM)是一种用于HTML和XML文档的编程接口。它给文档提供了一种结构化的表示方法,可以改变文档的内容和呈现方式。我们最为关心的是,DOM把网页和脚本以及其他的编程语言联系了起来。DOM属于浏览器,而不是JavaScript语言规范里的规定的核心内容。注:一般说的JS让页面动起来泛指JavaScript和Dom
var obj=document.getElementById(‘t1‘)
obj.innerText
obj.innerHTML
1 <title>Django静态网页测试</title> 2 //跑马灯标题显示 3 function Go(){ 4 var content=document.title; 5 var firstChar=content.charAt(0); 6 var sub=content.substring(1,content.length) 7 document.title=sub+firstChar; 8 //console.log(content) 9 10 } 11 setInterval(‘Go()‘,1000);
1 <!DOCTYPE html> 2 <html> 3 <head lang="en"> 4 <meta charset="UTF-8"> 5 <title>Django静态网页测试</title> 6 7 <style> 8 .gray{ 9 color:gray; 10 } 11 .black{ 12 color:black; 13 } 14 15 </style> 16 <script type=‘text/javascript‘> 17 //关键字搜索 18 function Enter(){ 19 var id=document.getElementById(‘tip‘); 20 id.className=‘black‘; 21 if(id.value==‘请输入关键字‘||id.value.trim()==‘‘){ 22 id.value=‘‘; 23 } 24 25 } 26 function Leave(){ 27 var id=document.getElementById(‘tip‘); 28 var val=id.value; 29 id.className=‘black‘; 30 if(val.length==0||id.value.trim()==‘‘){ 31 id.value=‘请输入关键字‘; 32 id.className=‘gray‘ 33 } 34 else{ 35 id.className=‘balck‘; 36 } 37 } 38 </script> 39 </head> 40 <body> 41 42 43 <h1>主标题</h1> 44 45 <table> 46 <tr><td>序号</td><td>名称</td></tr> 47 <tr><td>1</td><td>Hbase实战</td></tr> 48 <tr><td>2</td><td>Lucene in Action</td></tr> 49 </table> 50 </br></br> 51 搜索:<input type=‘text‘ class=‘gray‘ id=‘tip‘ value=‘请输入关键字‘ onfocus=‘Enter();‘ onblur=‘Leave();‘/> 52 </br> 53 </br> 54 </br> 55 56 用户名:<input type=‘text‘ id=‘t1‘ name=‘username‘ /> 57 </br></br> 58 <div id=‘t2‘ name=‘pwd‘>hello world!</div> 59 <!-- 60 <script src="https://www.gstatic.com/og/_/js/k=og.og2.en_US.iF4jnkQuaf0.O/rt=j/t=zcms/m=def/exm=in,fot/d=1/ed=1/rs=AA2YrTv5-POC4Ks9GtGRdY2ywUWisqz7-Q"></script> 61 --> 62 <script type="text/javascript"> 63 var name="server"; //#局部变量 64 age=18; /*#全局变量*/ 65 //for 66 var names=[‘alex‘,‘tony‘,‘rain‘]; 67 for(var i=0;i<names.length;i++){ 68 console.log(i); 69 console.log(names[i]); 70 } 71 console.log(‘----------‘) 72 for (var index in names){ 73 console.log(names[index]); 74 } 75 //alert(‘123‘); 76 console.log(‘----------‘) 77 var name2={‘name‘:‘alex‘,‘age‘:18} 78 for(var index in name2){ 79 80 console.log(index); 81 console.log(name2[index]); 82 } 83 //while 84 //while() 85 var name3=‘alex‘ 86 var age3=1; 87 //swithc,case 88 console.log(‘----------‘) 89 switch (name3){ 90 case ‘1‘: 91 92 age3=13; 93 console.log(age3) 94 break; 95 case ‘2‘: 96 age3=456; 97 console.log(age3) 98 break; 99 default: 100 age3=777; 101 console.log(age3) 102 } 103 104 //自执行函数 105 (function(arg1){ 106 //alert(arg1); 107 console.log(arg1); 108 })(‘text‘) 109 console.log(‘----------‘) 110 //面向对象 111 112 function Foo(name,age){ 113 this.name=‘name‘; 114 this.age=age; 115 this.Func=function(arg){ 116 return this.name+arg; 117 } 118 } 119 var obj=new Foo(‘alex‘,19); 120 var ret=obj.Func(‘ so-easy‘); 121 console.log(ret); 122 /* 123 alert(‘this is alert‘) 124 confirm(‘this is confirm‘) 125 */ 126 //DOM 127 var obj=document.getElementById(‘t1‘) 128 obj.innerText 129 obj.innerHTML 130 console.log(obj) 131 console.log(obj.innerText) 132 console.log(obj.innerHTML) 133 134 </script> 135 136 </body> 137 </html>
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原文地址:http://www.cnblogs.com/lisa2016/p/5492055.html