JavaScript只允许数字输入代码

js中的一个只允许数字输入的功能，只要将此功能粘贴在js文件或页面的<script>中即可

function standMoney(inObject){

var inStr = inObject.value;

var i,charValue,outStr,id=0;

for(i=0;i2) {

alert(inStr+" bad money style!");

inObject.focus();

inObject.select();

return;

}

var dotStr,dotValue;

if(valueArr.length==2) {

dotValue = valueArr[1];

if(dotValue.length==0) {

dotStr = "";

}else {

if(dotValue.length==1)

dotStr = dotValue;

else

dotStr = dotValue.substring(0,2);

}

}

var intArr;

intArr = valueArr[0].split(",");

var intValue;

intValue = "";

for(i=0;i1 && intValue.charAt(0)=="0" && intValue.charAt(1)!=".") {

intValue = intValue.substr(1,intValue.length-1);

}

while(intValue.length>3) {

intStr=","+intValue.substring(intValue.length-3,intValue.length) + intStr;

intValue = intValue.substring(0,intValue.length-3);

}

intStr = intValue + intStr;

if(dotStr==null )

outStr = intStr;

else

outStr = intStr + "." + dotStr;

inObject.value = outStr;

return;

}

更多信息请查看IT技术专栏