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作用域问题写的不全 #1

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Uestcyuan opened this issue Aug 16, 2018 · 0 comments

Uestcyuan commented Aug 16, 2018

如果var a=b=3相当于var a;b=3;
那在函数里打印a，也应当是not defined;
但此处打印结果是3；
所以我理解的代码应该等同于var a=b;b=3

Uestcyuan changed the title ~~3问题写的不全~~ 作用域问题写的不全

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