c dev-c++ 用while一直循环

Question

#include <stdio.h>
#include <stdlib.h>
#include <time.h>

/* run this program using the console pauser or add your own getch, system("pause") or input loop */

int main(int argc, char *argv[]) {
int x = 1;
srand(time(0));
int y = rand();
int a = scanf("number");
int z = y%100;
printf("%d",z);
if(z = a){
printf("right%d",x);
}
while(z =! a){
printf("%d",a);
z = a;
x++;
}

}
运行后就是满篇的0，不知道为什么

Answer 1

int a = scanf("number");是什么鬼
if(z = a)这里应该是==
你这是猜数游戏吧，代码修改如下：

#include <stdio.h>
#include <stdlib.h>
#include <time.h>

/* run this program using the console pauser or add your own getch, system("pause") or input loop */

int main(int argc, char* argv[]) {
    int x = 1;
    srand(time(0));
    int y = rand();
    printf("number");
    int a;
    scanf("%d",&a);
    int z = y % 100;
    //printf("%d", z);
    if (z == a) {
        printf("right%d", x);
    }
    while (z = !a) {
        scanf("%d", &a);
        //z = a;
        x++;
    }
    printf("%d", x);
    system("pause");
    return 0;
}