2019-06-21
2019-06-21 本文已影响0人
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var a = 1
function fn1 () {
function fn3 () {
function fn2 () {
console.log(a)
}
fn2()
var a = 4
}
var a = 2
return fn3
}
var fn = fn1()
fn()
var a = 1
function fn1 () {
function fn2 () {
console.log(a)
}
function fn3 () {
fn2()
var a = 4
}
var a = 2
return fn3
}
var fn = fn1()
fn()
