我需要显示使用指针为我的作业,以获得完整的功劳。问题与C指针
我有一个指针的问题。我的作业是模拟兔子和乌龟种族。比赛从1开始,在70完成。根据已经过去的时间百分比,兔子和乌龟可能会快速或缓慢地前进,可能会掉下一小块或一大块山,或者兔子可能会睡着。当一个人达到70岁时,比赛结束,并且该位置不可能是负面的(上一次和如果)。开关完成与运动有关的所有事情。你会注意到,如果开关前进或掉下道路,开关的价值就会被忽视。
我的问题是与指针。我必须使用他们,他们是我**!请帮助:
代码:
#include <stdio.h>
int main(void)
{
int x, post, posl, num1, num2;
int *ptrt;
int *ptrl;
ptrt=&post;
ptrl=&posl;
printf("BANG!!!!\nY ARRANCAN\n");
post=posl=1;
do{
num1 = rand() % 10;
num2 = rand() % 10;
switch (num1){
case '0': *ptrt=&post+3; break;
case '1': *ptrt=&post+3; break;
case '2': *ptrt=&post+3; break;
case '3': *ptrt=&post+3; break;
case '4': *ptrt=&post+3; break;
case '5': *ptrt-=&post+6; break;
case '6': *ptrt-=&post+6; break;
case '7': *ptrt+=&post+1; break;
case '8': *ptrt+=&post+1; break;
case '9': *ptrt+=&post+1; break;
}
switch (num2){
case '2': *ptrl=&posl+9; break;
case '3': *ptrl=&posl+9; break;
case '4': *ptrl=&posl-12; break;
case '5': *ptrl=&posl+1; break;
case '6': *ptrl=&posl+1; break;
case '7': *ptrl=&posl+1; break;
case '8': *ptrl=&posl-2; break;
case '9': *ptrl=&posl-2; break;
}
if (post<1)
post=1;
if (posl<1)
posl=1;
}while (*ptrt<70||*ptrl<70);
printf("tortuga= %d\nliebre=%d\n" ,post ,posl);
return 0;
}
编译器输出:
tarea.c: In function ‘main’:
tarea.c:17: warning: assignment makes integer from pointer without a cast
tarea.c:18: warning: assignment makes integer from pointer without a cast
tarea.c:19: warning: assignment makes integer from pointer without a cast
tarea.c:20: warning: assignment makes integer from pointer without a cast
tarea.c:21: warning: assignment makes integer from pointer without a cast
tarea.c:22: error: invalid operands to binary - (have ‘int’ and ‘int *’)
tarea.c:23: error: invalid operands to binary - (have ‘int’ and ‘int *’)
tarea.c:24: warning: assignment makes integer from pointer without a cast
tarea.c:25: warning: assignment makes integer from pointer without a cast
tarea.c:26: warning: assignment makes integer from pointer without a cast
tarea.c:29: warning: assignment makes integer from pointer without a cast
tarea.c:30: warning: assignment makes integer from pointer without a cast
tarea.c:31: warning: assignment makes integer from pointer without a cast
tarea.c:32: warning: assignment makes integer from pointer without a cast
tarea.c:33: warning: assignment makes integer from pointer without a cast
tarea.c:34: warning: assignment makes integer from pointer without a cast
tarea.c:35: warning: assignment makes integer from pointer without a cast
tarea.c:36: warning: assignment makes integer from pointer without a cast
感谢您的帮助提前
我认为这是因为在尝试操纵它们之前需要对它们进行去偏移。 – clamchoda
开关中所有'posl'和'post'之前的'&'字母不需要。 – osgx
你为什么使用指针? – outis