[ActionScript 3.0] AS3 判断字符串是否为数字
trace(isNaN(Number("0")));//false trace(isNaN(Number("123")));//false trace(isNaN(Number("sw3f23")));//true trace(isNaN(Number("swf")));//true judgeNumber("123");//123 is number function judgeNumber(value:String):void { if(isNaN(Number(value))){ trace(value+" is not number"); }else{ trace(value + " is number"); } }
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