goto在函數體內跳轉，不能跳到函數體外的函數。即goto有局部作用域，需要在同一個棧內。
語法如下：
#include <windows.h>
#include <stdio.h>
int main()
{
int n=7;
number2:
printf("hello world\n");
if (n==7)
{
n=8;
printf("n=7 start\n");
goto number0;
printf("n=7 end\n");
}
else
{
printf("n=8 start\n");
goto number1;
printf("n=8 end\n");
}

number0:
printf("hi number0\n");
goto number2;
number1:
printf("hi number1\n");
number3:
printf("number3\n");
system("pause");
return 0;
}