How to clear a string array in C language?

In C language, there are two methods to empty a string array.

Option 1:
Method 1: Assign an empty string to an array using the strcpy function.

#include <stdio.h>
#include <string.h>

int main()
{
    char str[100];
    
    // 清空数组
    strcpy(str, "");
    
    printf("%s\n", str); // 输出为空字符串
    
    return 0;
}

Option 1: The second method is to use the memset function to set all elements in the array to 0.

#include <stdio.h>
#include <string.h>

int main()
{
    char str[100];
    
    // 清空数组
    memset(str, 0, sizeof(str));
    
    printf("%s\n", str); // 输出为空字符串
    
    return 0;
}

Both methods can be used to empty the string array, the choice between the two ultimately depends on personal preference and project requirements.