How to input a string in the C language?

In C language, you can input a string using either the gets() function or the scanf() function.

Using the gets() function:

#include <stdio.h>

int main() {
    char str[50];
    
    printf("请输入一个字符串：");
    gets(str);
    
    printf("您输入的字符串是：%s\n", str);
    
    return 0;
}

Utilize the scanf() function:

#include <stdio.h>

int main() {
    char str[50];
    
    printf("请输入一个字符串：");
    scanf("%s", str);
    
    printf("您输入的字符串是：%s\n", str);
    
    return 0;
}

It is important to note that the scanf() function stops reading when it encounters a space or newline character, so if you need to input a string with spaces, it is recommended to use the gets() function. Additionally, to avoid inputting strings that exceed the length of an array, you can use the fgets() function as a replacement for gets().