题解 | #定义变量#

#include <iostream>
using namespace std;

int main() {
   char  a;
   int b ;
   long c;
   double d;
   cout<<sizeof(a)<<endl;
   cout<<sizeof(b)<<endl;
   cout<<sizeof(c)<<endl;
   cout<<sizeof(d)<<endl;
    return 0;
}