js 中有没有替换String.format("%05d",“”）的方法吗？？~跪求~~急等！！

[fengziba]

js 中有没有替换String.format("%05d",“”）的方法啊~跪求~~急等

[ggwk]

以前收藏的，正好给你

<script type="text/javascript">

//V1 method
String.prototype.format = function()
{
    var args = arguments;
    return this.replace(/\{(\d+)\}/g,                
        function(m,i){
            return args[i];
        });
}

 

//V2 static
String.format = function() {
    if( arguments.length == 0 )
        return null; 

    var str = arguments[0]; 
    for(var i=1;i<arguments.length;i++) {
        var re = new RegExp('\\{' + (i-1) + '\\}','gm');
        str = str.replace(re, arguments[i]);
    }
    return str;
} 

var a = "I Love {0}, and You Love {1},Where are {0}! {4}";
alert(String.format(a, "You","Me")); 

alert(a.format("You","Me"));
</script> 

[fengziba]

谢谢 可是我想实现
如果是 1 的话 就显示00001 如果是 10 的话就显示 00010 如果是 100 就显示 00100 这样的效果

[fengziba]

难道没有办法么？

[fengziba]

不能沉啊~~ 谁能解救一下我啊~~~跪求啊~~

[踏雪浪人]

<script language="javascript">
function string_format(str){
  if(str.length < 5){
     var k = 5 - str.length;
     for(var i = 0 ; i < k ; i++){   
	   str = "0" + str;
	   
	 }
  }
  return str;
}
alert(string_format("2"));
</script>

[xuyiazl]

var formats = {
            '%': function(val) { return '%'; },
            'b': function(val) { return parseInt(val, 10).toString(2); },
            'c': function(val) { return String.fromCharCode(parseInt(val, 10)); },
            'd': function(val) { return parseInt(val, 10) ? parseInt(val, 10) : 0; },
            'u': function(val) { return Math.abs(val); },
            'f': function(val, p) { return (p > -1) ? Math.round(parseFloat(val) * Math.pow(10, p)) / Math.pow(10, p) : parseFloat(val); },
            'o': function(val) { return parseInt(val, 10).toString(8); },
            's': function(val) { return val; },
            'S': function(val, p) { var len = p - val.toString().length; for (i = 0; i < len; i++) val = '0' + val; return val; },
            'x': function(val) { return ('' + parseInt(val, 10).toString(16)).toLowerCase(); },
            'X': function(val) { return ('' + parseInt(val, 10).toString(16)).toUpperCase(); }
        };

        var re = /%(?:(\d+)?(?:\.(\d+))?|\(([^)]+)\))([%bcdufosSxX])/g;

        var dispatch = function(data) {
            if (data.length == 1 && typeof data[0] == 'object') {
                data = data[0];
                return function(match, w, p, lbl, fmt, off, str) {
                    return formats[fmt](data[lbl]);
                };
            } else {
                var idx = 0;
                return function(match, w, p, lbl, fmt, off, str) {
                    return formats[fmt](data[idx++], p);
                };
            }
        };

        String.prototype.sprintf = function() {
            //var argv = Array.apply(null, arguments);
            return this.replace(re, dispatch(arguments));
        }
        String.prototype.vsprintf = function(data) {
            return this.replace(re, dispatch(data));
        }

        //sprintf


        var classixxc = '%.5S'.sprintf(10);
        alert(classixxc)
        //classic = '00010'
        var classic = '%s %d% %.3f'.sprintf('string', 40, 3.141593);
        alert(classic)
        // classic = 'string 40% 3.142'
        var named = '%(name)s: %(value)d'.sprintf({ name: 'age', value: 40 });
        alert(named)
        //named = 'age: 40'
        //vsprintf
        var classisc = '%s %d% %.3f'.vsprintf(['string', 40, 3.141593]);
        alert(classisc)
        // classisc = 'string 40% 3.142'

[fengziba]

谢谢各位 我找到其他方法解决了 再次谢谢 结贴给分