#pragma warning(disable:4786) #include <iostream> #include <list> #include <algorithm> #include <string> //#include <iomanip.h> using namespace std; template <class T>void print(const T& Ele) { cout<<" "<<Ele<<";"<<endl; } // 格式化输出 void Print_D(double& Ele) { cout.width(5); // 宽度5 cout.precision(1); // 保留1位小数 cout<<std::fixed<<Ele<<", "; } void Print_I(int& Ele) { cout<<Ele<<", "; } void main() { //上定义双向队列 list<string>mylist_string; list<double>mylist_double(6); //---------初始化mylist_string mylist_string.push_front("1: Jack"); mylist_string.push_front("2: Tom"); mylist_string.push_front("3: Mike"); //---------初始化mylist_double mylist_double.push_front(10.0); mylist_double.push_front(20.0); mylist_double.push_front(30.0); mylist_double.push_front(40.0); mylist_double.push_front(50.0); //下述是三种容器定义形式 list<int> mylist_int(6,0); // 6个0:0 0 0 0 0 0 list<double>mylist_double2(6,0.0); // 6个0.0:0.0 0.0 0.0 0.0 0.0 0.0 list<int>elselist(mylist_int); // 以其它双向队列初始化 list<double>Iterlist(mylist_double.begin(),mylist_double.end()); // 以其他队列初始化 //----输出各个容器中的元素 cout<<"打印 mylist_string:"<<endl; list<string>::iterator iter_String; // 迭代器 for(iter_String=mylist_string.begin();iter_String!=mylist_string.end();iter_String++) { string temp=*iter_String; print(temp); } cout<<"打印 mylist_double:"<<endl; for_each(mylist_double.begin(),mylist_double.end(),Print_D); cout<<endl; cout<<"打印 mylist_double2:"<<endl; for_each(mylist_double2.begin(),mylist_double2.end(),Print_D); cout<<endl; cout<<"打印 Iterlist:"<<endl; for_each(Iterlist.begin(),Iterlist.end(),Print_D); cout<<endl; cout<<"打印 mylist_int:"<<endl; for_each(mylist_int.begin(),mylist_int.end(),Print_I); cout<<endl; cout<<"打印 elselist:"<<endl; for_each(elselist.begin(),elselist.end(),Print_I); cout<<endl; //各容器的容量 int size=mylist_string.size(); int maxsize=mylist_string.size(); mylist_string.resize(5); size=mylist_double.size(); maxsize=mylist_double.max_size(); mylist_double.resize(5); size=mylist_double2.size(); maxsize=mylist_double2.max_size(); mylist_double2.resize(5); size=Iterlist.size(); maxsize=Iterlist.max_size(); Iterlist.resize(5); size=mylist_int.size(); maxsize=mylist_int.max_size(); mylist_int.resize(5); size=elselist.size(); maxsize=elselist.max_size(); elselist.resize(5); //----再次输出各个容器中的元素 cout<<"打印 mylist_string:"<<endl; for(iter_String=mylist_string.begin();iter_String!=mylist_string.end();iter_String++) { string temp=*iter_String; print(temp); } cout<<"打印 mylist_double:"<<endl; for_each(mylist_double.begin(),mylist_double.end(),Print_D); cout<<endl; cout<<"打印 mylist_double2:"<<endl; for_each(mylist_double2.begin(),mylist_double2.end(),Print_D); cout<<endl; cout<<"打印 Iterlist:"<<endl; for_each(Iterlist.begin(),Iterlist.end(),Print_D); cout<<endl; cout<<"打印 mylist_int:"<<endl; for_each(mylist_int.begin(),mylist_int.end(),Print_I); cout<<endl; cout<<"打印 elselist:"<<endl; for_each(elselist.begin(),elselist.end(),Print_I); cout<<endl; //使用迭代器相关的函数 list<double>::iterator Iter_D; list<double>::reverse_iterator Iter_rD; cout<<"打印 mylist_double 所有元素:"<<endl; for_each(mylist_double.begin(),mylist_double.end(),Print_D); cout<<endl; double tmp=0.0; Iter_D=mylist_double.begin(); tmp=*Iter_D; cout<<"打印 mylist_double 的 begin:"<<endl; cout<<tmp<<endl; Iter_rD=mylist_double.rbegin(); tmp=*Iter_rD; cout<<"\r\n打印 mylist_double 的 rbegin:"<<endl; cout<<tmp<<endl; Iter_D=mylist_double.end(); Iter_D--; // 必须--,end为指向最后一个元素所在位置后一个位置 tmp=*Iter_D; cout<<"打印 mylist_double 的 end:"<<endl; cout<<tmp<<endl; Iter_rD=mylist_double.rend(); Iter_rD--; // 必须--,rend为指向第一个元素所在位置前一个位置 tmp=*Iter_rD; cout<<"打印 mylist_double 的 rend:"<<endl; cout<<tmp<<endl; tmp=mylist_double.front(); cout<<"打印 mylist_double 的 front:"<<endl; cout<<tmp<<endl; // //cout<<mylist_double.front()<<endl; tmp=mylist_double.back(); cout<<"打印 mylist_double 的 back:"<<endl; cout<<tmp<<endl; }
标签:std,mylist,string,0.0,使用,list,push,double,front From: https://www.cnblogs.com/zxdplay/p/16930040.html