js-----比较运算符

<script type="text/javascript">

//比较运算符>

/* var a = 123;

var b = "123";

var c = a==b;//==判断数据的内容，不判断类型

console.log(c);//true

 

var d = a===b;

console.log(d);//判断内容和数据  false 因为数据类型不一致*/

// ！=判断数据的内容不一样

/*var a = "woai";

var b = "aaa";

var c = a!=b;

console.log(c);//true*/

 

// !==判断数据内容和类型不相等

var a = "woai";

var b = "woai";

var c = a!==b;

console.log(c);//false

</script>

评论

1 楼 masuweng 2016-07-12  

很适用,var a = "woai";

var b = "woai";

var c = a!==b;