The function's return value is the new number of elements in the array (See example 2).
The function's return value is the new number of elements in the array (See example 2).
函数最终返回的是插入新元素后的数组。
The function's return value is the new number of elements in the array (See example 2).
函数最终返回的是插入新元素后的数组。