第七周作业

例5.1

#include<iostream>using namespace std;void display(){cout<<"This is an example."<<endl;}int main(){display();return 0;}

例5.2

#include<iostream>using namespace std;double min(double x,double y){return x<y?x:y;}int main(){cout<<min(6.0,5.0)<<endl;return 0;}

例5.3

#include<iostream>using namespace std;double circleArea(double);int main(){double area=circleArea(5.0);cout<<"area="<<area<<endl;return 0;}double circleArea(double r){double pi=3.14;double area=pi*r*r;return area;}

……

由于例题较多，边幅太长，就不一一上存博客了，在电脑上调试就好了