goto只能在本函数内跳转

#include <iostream>

int main()
{
    int i = 1,sum=0;
lable:
    sum+=i;
    i++;
    if(i<=100)
    {   
    goto lable;                                                                                                                                               
    }   
    printf("sum=%d\n",sum);
    return 0;
}