c++编写延时循环

目的是延时显示

示例：

long wait = 0;

while(wait<10000)

　　wait++;

程序示例————来源于《c++ primer plus》ps149,程序清单5.14

#include <iostream>
#include <Ctime>
using namespace std;
int main()
{
    cout<<"Enter the delay time,in seconds: ";
    float secs;
    cin>>secs;
    clock_t delay = secs * CLOCKS_PER_SEC;
    cout<<"starting\a"<<endl;
    clock_t start = clock();
    while (clock()-start<delay)
        ;
    cout<<"done \a"<<endl;
    return 0;
}