在js中使用createElement创建HTML对象和元素

1.创建链接

<script language= "javascript"> 
var o = document.body; 
//创建链接 
function createA(url,text) 
{ 
var a = document.createElement( "a"); 
a.href = url; 
a.innerHTML = text; 
a.style.color =  "red"; 
o.appendChild(a); 
} 
createA( "http://www.ffasp.com/","网页教学网"); 
</script> 

 

2.创建DIV

<script language= "javascript"> 
var o = document.body; 
//创建DIV 
function createDIV(text) 
{ 
var div = document.createElement( "div"); 
div.innerHTML = text; 
o.appendChild(div); 
} 
createDIV( "网页教学网：http://www.ffasp.com/");    
</script> 

 

3.创建表单项

<script language= "javascript"> 
var o = document.body; 
//创建表单项 
function createInput(sType,sValue) 
{ 
var input = document.createElement( "input"); 
input.type = sType; 
input.value = sValue; 
o.appendChild(input); 
} 
createInput( "button", "ooo"); 
</script> 

 

4.创建表格

<script language= "javascript"> 
var o = document.body; 
//创建表格 
function createTable(w,h,r,c) 
{ 
var table = document.createElement( "table"); 
var tbody = document.createElement( "tbody"); 
table.width = w; 
table.height = h; 
table.border = 1;    
for( var i=1;i<=r;i++) 
{ 
var tr = document.createElement( "tr"); 
for( var j=1;j<=c;j++) 
{ 
var td = document.createElement( "td"); 
td.innerHTML = i + "" + j; 
//td.appendChild(document.createTextNode(i + "" + j)); 
td.style.color =  "#FF0000"; 
tr.appendChild(td); 
} 
tbody.appendChild(tr);    
} 
table.appendChild(tbody); 
o.appendChild(table); 
} 
createTable(270,270,9,9); 

5.创建select

jquery 的话这样
<select id="selectid">
</select>
 
$(function(){
   $("#selectid").click(function(){
        $("#selectid").append("<option value='"+entity+"'>"+entity+"</option>");//entity 变量
}); 
  
});

js的话
function padd(){
 var objOption = document.createElement("OPTION");
 objOption.text= 2; 
 objOption.value=2; 
 document.getElementById("padd").options.add(objOption);
}

</script>