[removed] var a = [1,2,3] function f(a){ a[3] = 4; // a = [1, 2, 3, 4] a = [100]; // a = [100] } f(a) console.log(a) // 输出结果为:[1, 2, 3, 4] [removed]...
[removed] var a = [1,2,3] function f(a){ a[3] = 4; // a = [1, 2, 3, 4] a = [100]; // a = [100] } f(a) console.log(a) // 输出结果为:[1, 2, 3, 4] [removed]...