标签：ar java sp bs javascript as 学习 js ip
alert(0.1 + 0.2); //不是0.3 alert(NaN + NaN); //不是false alert(isNaN(NaN)); //true alert(isNaN(1)); //false alert(isNaN(‘1‘)); //false alert(isNaN(‘blue‘)); //true alert(isNaN(true)); //false
标签：ar java sp bs javascript as 学习 js ip
原文地址：http://my.oschina.net/u/1421356/blog/335641
