C 语言编写的将字符串表示的数转换为无符号整数的程序

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

unsigned int stringToUInt(char* str)
{
unsigned int result = 0;
int i = 0;

while(str[i] != '\0')
{
    result = result * 10 + (str[i] - '0');
    i++;
}

return result;

}

int main()
{
char str[100];
unsigned int result;

printf("请输入一个字符串表示的无符号整数：");
scanf("%s", str);

result = stringToUInt(str);

printf("转换结果为：%u\n", result);

return 0;

}