输入外挂~模板记录

#include<stdio.h>#include<string.h>using namespace std;int Scan(){int res = 0, ch, flag = 0;if((ch = getchar()) == '-')//判断正负flag = 1;else if(ch >= '0' && ch <= '9')//得到完整的数res = ch - '0';while((ch = getchar()) >= '0' && ch <= '9' )res = res * 10 + ch - '0';return flag ? -res : res;}int main(){    int n=Scan();    printf("%d\n",n);}