function a(b){?? ??? ??? ?alert(b);?? ??? ??? ?function b(){?? ??? ??? ??? ?alert(b);?? ??? ??? ?}?? ??? ??? ?b();?? ??? ?}a(1);為什么輸出是這樣的？alert: "function?b(){
alert(b);
}"alert: "function?b(){
alert(b);
}"
js遇到的問(wèn)題
qq_丨銀丨_0
2016-09-19 10:35:12
