<!DOCTYPE html>标签：分析,function,console,log,js016,词法,num From： https://www.cnblogs.com/lfyxys/p/16921440.html
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<meta charset="UTF-8">
<title>Title</title>
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//词法分析的顺序（函数未执行之前）：1-形参，2-局部变量，3-函数。最优先级是函数
<script>
function func(num){
console.log(num);
var num = 13;
console.log(num);
function num(){}
console.log(num)
num = 33;
console.log(num);
}
func(6)
</script>
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