JS——数组(引用传递)

//引用传递function print(arr){ //两个不同名字指向同一个地址？副本arr = new Array(3,4,5);console.log(arr);   //3,4,5}function print1(arr){arr[0] = 9;}var arr1 = [1,2,3,4,5];print(arr1);console.log(arr1);//1,2,3,4,5print1(arr1);console.log(arr1);//9,2,3,4,5

理解的不一定对