摘要：
#include<fstream>#include<iostream>using namespace std;int main(int){ ifstream inf; inf.open("abc.txt"); ofstream outf; outf.open("abc_back.txt"); cha 阅读全文
摘要：
#include<iostream>using namespace std;int main(){ int n; cout<<"Input n: "; cin>>n; cout<<"Dec: "<<dec<<n; cout<<" "<<"Oct: "<<oct<<n; cout<<" "<<"Hex 阅读全文
摘要：
#include<iostream>#include<fstream>using namespace std;class Dog{ public: int gdoga() { return a; } int gdogw() { return w; } void setdog(int x,int y) 阅读全文