function?A(){
????function?B(){
???????console.log('Hello?Closure!');
????}
????return?B;
}
var?C?=?A();
C();//?Hello?Closure!為什么直接調(diào)用A()；就沒(méi)有輸出呢？非要把A()調(diào)用再賦值給C， C再調(diào)用就能輸出內(nèi)容呢？
return b與return b() 的區(qū)別
宋九十
2019-04-03 23:22:56
