There are six methods of array assignment in C language: 1. Direct assignment; 2. Use array initializer; 3. Use pointers; 4. Use loops; 5. Use memcpy() function; 6. Use scanf () function.
C language array assignment method
In C language, array is a data structure that is used to A collection that stores data of the same type. Arrays can be assigned in many ways, the specific methods are as follows:
1. Direct assignment:
This is the simplest and most direct assignment method, directly assigning elements Assign the value to the array element:
<code class="c">int arr[5] = {1, 2, 3, 4, 5};</code>
2. Use the array initializer:
The array initializer is a more concise way of assigning values, it can be directly used in the array Specify the element value when defining:
<code class="c">int arr[] = {1, 2, 3, 4, 5};</code>
3. Use pointers:
Use pointers to assign array elements one by one. The syntax is as follows:
<code class="c">int arr[5]; int *ptr = arr; *ptr = 1; // 赋值第一个元素 *(ptr + 1) = 2; // 赋值第二个元素 ...</code>
4. Use loops:
Loops can be used to batch assign array elements, the syntax is as follows:
<code class="c">int arr[5]; for (int i = 0; i < 5; i++) { arr[i] = i + 1; }</code>
5. Use memcpy() function:
The memcpy() function can copy a piece of memory at one time, and can also be used to assign an array:
<code class="c">int arr[5]; int src[5] = {1, 2, 3, 4, 5}; memcpy(arr, src, sizeof(src));</code>
6. Use the scanf() function:
scanf The () function can get data from user input and assign it to array elements. The syntax is as follows:
<code class="c">int arr[5]; scanf("%d %d %d %d %d", &arr[0], &arr[1], &arr[2], &arr[3], &arr[4]);</code>
The above is the detailed content of What are the array assignment methods in C language?. For more information, please follow other related articles on the PHP Chinese website!