C Array Assignment Methods Explained

In C language, there are several ways to assign values to an array.

1. Assign values to each element one by one.

int arr[5];
arr[0] = 1;
arr[1] = 2;
arr[2] = 3;
arr[3] = 4;
arr[4] = 5;

1. Use a loop for assignment:

int arr[5];
for (int i = 0; i < 5; i++) {
    arr[i] = i + 1;
}

1. Assign values using initializer lists.

int arr[5] = {1, 2, 3, 4, 5};

1. Assign values using the memset function.

int arr[5];
memset(arr, 0, sizeof(arr)); // 将数组元素全部初始化为0

1. Assign values using the memcpy function.

int arr1[5] = {1, 2, 3, 4, 5};
int arr2[5];
memcpy(arr2, arr1, sizeof(arr1)); // 将数组arr1的值复制给arr2

These methods can be selected based on specific circumstances to facilitate the assignment operations on arrays.