```cpp
bool zhishu(int x){
if(x==0 || x==1) return 0;
for(int i=2;i*i<=x;i++){
if(x%i==0){
return 0;
}
return 1;
}
}
```
return 1; 写错地方了，应该写循环外面
by jesse1216 @ 2024-01-30 09:43:33
@[weizekai](/user/1016066)
你确定`return 1`要写在for里面吗
by rgw2010__ @ 2024-01-30 09:43:58
@[weizekai](/user/1016066)
by jesse1216 @ 2024-01-30 09:44:14
@[jesse1216](/user/530437)
明白了 感谢大佬
by weizekai @ 2024-01-30 09:52:12