var a=10
function b(){
console.log(a)
a = 100
console.log(a)
console.log(this.a)
return;
function a(){}
}
b()
輸出以上題目答案
var a=10
function b(){
console.log(a)
a = 100
console.log(a)
console.log(this.a)
return;
function a(){}
}
b()
輸出以上題目答案