编写函数实现：整型数转换成字符串

#include "stdio.h"#include "stdlib.h"#include "string.h"void int_to_str(unsigned int src,unsigned char* dest);void main(void){unsigned int num = 0;unsigned char str[11] = {0};printf("scanf a number:\n");scanf("%d",&num);int_to_str(num,str);printf("after convert: %s\n",str);}void int_to_str(unsigned int src,unsigned char* dest){char pos = 0;char len = 0;if(NULL == dest)return ;do{dest[pos++] = src % 10 + '0';}while(src /= 10);dest[pos] = '\0';len = strlen((const char*)dest);for(pos = 0;pos < len/2;pos++){dest[pos] += dest[len-pos-1];dest[len-pos-1] = dest[pos]-dest[len-pos-1];dest[pos] -= dest[len-pos-1];}}