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@ayuLiao
Created January 19, 2019 10:43
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//int型转换成string型
var x=100
a = x.toString()
var x=100;
a = x +""; //JS会自动隐性转换
//将string 变成 int
parseInt("abc") // Returns NaN.
parseInt("12abc") // Returns 12.
parseInt("12") //Return 12.
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