我想用 cin 运算符从控制台给出一个值,而不是使用 #define N 6。我试过了,但我收到“表达式必须具有常量值”错误消息。我应该如何通过其他方式做到这一点?
谢谢你的回答!
示例代码:
#include <iostream>
#include <string>
#include <cstdlib>
#include <ctime>
#define N 6
using namespace std;
typedef struct person {
int roll;
string name;
} Person;
int main() {
int numberofperson;
cout << "Number of people: "; cin >> numberofperson;
srand(time(NULL));
Person people[N];
int i;
for (i = 0; i < numberofperson; i++) {
cout << "Write the " << i + 1 << ". name of the person: ";
cin >> people[i].name;
people[i].roll …Run Code Online (Sandbox Code Playgroud)