C编程:将长整数传递给函数并返回一个字符串

char* convertLongToString(long number);

int sprintf(char* str, const char* format, ...);

char* result = (char*)malloc(sizeof(char) * MAX_LENGTH);

sprintf(result, "%ld", number);

return result;

#include <stdio.h>
#include <stdlib.h>

#define MAX_LENGTH 20

char* convertLongToString(long number) {
    char* result = (char*)malloc(sizeof(char) * MAX_LENGTH);
    sprintf(result, "%ld", number);
    return result;
}

int main() {
    long number = 1234567890;
    char* str = convertLongToString(number);
    printf("Converted string: %s\n", str);
    free(str);
    return 0;
}