C程序书中一个列题中的一个else,不明其用意,大家帮忙看一下!!谢
while循环中的的else是书中原有的,经我调试,有没有else执行的结常都正常,请问一下这个else还有其他含意吗?(刚学函数不长时间)
//模拟掷双骰子游戏
# include <stdio.h>
# include <stdlib.h>
# include <time.h>
int rollDice (void);
/*
{
int worksum, die1, die2;
die1 = 1 + (rand()%6);
die2 = 1 + (rand()%6);
worksum = die1 + die2;
printf("Player rolled %d + %d = %d\n", die1, die2, worksum);
return worksum;
}
*/
int main (void)
{
int gameStatus, sum, myPoint;
srand (time (NULL));
sum = rollDice (); //第一次投掷
switch (sum){
case 7: case 11: //第一次投掷就赢了
gameStatus = 1;
break;
case 2: case 3: case 12: //第一次投掷就输了
gameStatus = 2;
break;
default: //记下点数
gameStatus = 0;
myPoint = sum;
printf("Point is %d\n", myPoint);
break;
}
while(gameStatus == 0){ //继续投掷
sum = rollDice ();
if (sum == myPoint) //因为投出自己的点数,所以赢了
gameStatus = 1;
else
if (sum == 7) //因为投出了7,所以输了
gameStatus =2;
}
if (gameStatus == 1)
printf("Player wins\n");
else
printf("Player loses\n");
return 0;
}
int rollDice (void)
{
int worksum, die1, die2;
die1 = 1 + (rand()%6);
die2 = 1 + (rand()%6);
worksum = die1 + die2;
printf("Player rolled %d + %d = %d\n", die1, die2, worksum);
return worksum;
}