作业：c++作业3-项目4

一问题及代码

#include <iostream>#include <math.h>using namespace std;int main(){double x,y;cin>>x;if(x<2)cout<<"y="<<x<<endl;else if(x<6)cout<<"y="<<x*x+1<<endl;else if(x<10)cout<<"y="<<sqrt(x+1)<<endl;else cout<<"y="<<1/(x+1)<<endl;while (1);return 0;}

二运行结果