C++ c++;-while循环、字符串和整数
我想制作一个程序,用户输入几个名字,然后随机选取一个名字。但是,我不知道如何让绳子被挑起来。我想把每个字符串都分配给一个int,然后当选择int时,字符串也是如此。请帮帮我C++ c++;-while循环、字符串和整数,c++,string,loops,C++,String,Loops,我想制作一个程序,用户输入几个名字,然后随机选取一个名字。但是,我不知道如何让绳子被挑起来。我想把每个字符串都分配给一个int,然后当选择int时,字符串也是如此。请帮帮我 #include <iostream> #include <ctime> #include <cstdlib> #include <string> using namespace std; void randName()
#include <iostream>
#include <ctime>
#include <cstdlib>
#include <string>
using namespace std;
void randName()
{
string name;//the name of the entered person
cout << "write the names of the people you want.";
cout << " When you are done, write done." << endl;
int hold = 0;//holds the value of the number of people that were entered
while(name!="done")
{
cin >> name;
hold ++;
}
srand(time(0));
rand()&hold;//calculates a random number
}
int main()
{
void randName();
system("PAUSE");
}
#包括
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使用名称空间std;
void randName()
{
字符串名称;//输入的人员的名称
cout您可以使用std::vector
来存储您的姓名,然后使用随机数按索引选择其中一个姓名。您需要某种容器来存储姓名。vector
非常适合于此
std::string RandName()
{
std::string in;
std::vector<std::string> nameList;
cout << "write the names of the people you want.";
cout << " When you are done, write done." << endl;
cin >> in; // You'll want to do this first, otherwise the first entry could
// be "none", and it will add it to the list.
while(in != "done")
{
nameList.push_back(in);
cin >> in;
}
if (!nameList.empty())
{
srand(time(NULL)); // Don't see 0, you'll get the same entry every time.
int index = rand() % nameList.size() - 1; // Random in range of list;
return nameList[index];
}
return "";
}
std::vector
void randName();
主要是最烦人的解析
int main()
{
std::string myRandomName = randName();
system("PAUSE");
}