@[yaodiguoan](/user/1023793) 捕捉！
还有你用的什么语言，调成C++14试试
by CPlusPlusOnMars_star @ 2023-10-28 08:22:18
自动识别
by danlao @ 2023-10-28 08:47:42
@[CPlusPlusOnMars_star](/user/678881) 没听懂你在说啥
by danlao @ 2023-10-28 08:48:47
@[yaodiguoan](/user/1023793)
```cpp
#include<bits/stdc++.h>
using namespace std;
int main(){
int n,a,b,c;
char last,s[110],ans[110];
scanf("%d\n",&n);
while(n--){
fgets(s,sizeof(s),stdin);
if(s[0]=='a'or/*不要用or 用|| or只要左右两面没打空格就错了！*/ s[0]=='b' or s[0]=='c') last=s[0],s[0]=' ';
sscanf(s,"%d %d",&a,&b);
switch(last){
case'a':c=a+b;sprintf(ans,"%d+%d=%d",a,b,c);break;
case'b':c=a-b;sprintf(ans,"%d-%d=%d",a,b,c);break;
case'c':c=a*b;sprintf(ans,"%d*%d=%d",a,b,c);break;
}
printf("%s\n%d\n",ans,strlen(ans));
}
return 0;
}
```
by Andy_AC @ 2023-10-28 10:27:20
@[Andy_AC](/user/754233) 对耶，谢谢！！！
by danlao @ 2023-10-28 11:15:41