1
<script>
2
function MyGetKeyCode(e){
3
var code;
4 if (!e) var e = window.event;
5
if (e.keyCode){
6 code = e.keyCode;
7 }else if (e.which){
8 code = e.which;
9
}
10 return code;
11
}
12
13//-2.36onkeypress
14function MyCheckNum(obj,e)
15{
16 var code = MyGetKeyCode(e);
17 if ((code <45 ¦ ¦ code>57 ¦ ¦ code==47) && code!=45 && code!=9 && code!=8) return false;
18 if(code==46 && obj.value.indexOf(".")>-1) return false;
19 return true;
20}
21
22//325onkeypress
23function MyCheckInt(obj,e)
24{
25 var code = MyGetKeyCode(e);
26 if ((code <48 ¦ ¦ code>57) && code!=45 && code!=9 && code!=8) return false;
27 return true;
28}
29</script>
30只能输入整数
31<input type="text" name="txtName" onkeypress="return MyCheckInt(this,event)"> <br/>
32可输入小数
33<input type="text" name="txtName" onkeypress="return MyCheckNum(this,event)"> <br/>
34
<script> 2
function MyGetKeyCode(e){ 
function MyGetKeyCode(e)
3
var code; 4
if (!e) var e = window.event; 5
if (e.keyCode){ 
6
code = e.keyCode; 7
}else if (e.which){ 8
code = e.which; 9
} 10
return code; 11
} 12
13
//-2.36onkeypress 14
function MyCheckNum(obj,e) 15
{ 16
var code = MyGetKeyCode(e); 17
if ((code <45 ¦ ¦ code>57 ¦ ¦ code==47) && code!=45 && code!=9 && code!=8) return false; 18
if(code==46 && obj.value.indexOf(".")>-1) return false; 19
return true; 20
} 21
22
//325onkeypress 23
function MyCheckInt(obj,e) 24
{ 25
var code = MyGetKeyCode(e); 26
if ((code <48 ¦ ¦ code>57) && code!=45 && code!=9 && code!=8) return false; 27
return true; 28
} 29
</script> 30
只能输入整数 31
<input type="text" name="txtName" onkeypress="return MyCheckInt(this,event)"> <br/> 32
可输入小数 33
<input type="text" name="txtName" onkeypress="return MyCheckNum(this,event)"> <br/> 34