How can you reverse output a string in the C language?

There are several ways to output a string in reverse order using the C language.

1. Iterate through the string using a loop and output it in reverse.

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

void reverseString(char* str) {
    int length = strlen(str);
    for (int i = length - 1; i >= 0; i--) {
        printf("%c", str[i]);
    }
}

int main() {
    char str[] = "Hello, World!";
    reverseString(str);
    return 0;
}

1. Reverse the string using a recursive function.

#include <stdio.h>

void reverseString(char* str) {
    if (*str) {
        reverseString(str + 1);
        printf("%c", *str);
    }
}

int main() {
    char str[] = "Hello, World!";
    reverseString(str);
    return 0;
}

Both methods can achieve the function of reversing a string, the specific choice between the two depends on personal preference and project requirements.