IO标准库类型和头文件

讲解在《C++ Primer》的第245面有,这里只是为了让自己记忆加深,并让大家好查,所以打上来:

 

 

头文件                                                                                            类   型


iostream                                                             istream从流中读取

                                                                           ostream写到流中去

                                                                           iostream对流进行读写;从istream和ostream派生而来


fstream                                                               ifstream从文件中读取;由istream派生而来

                                                                           ofstream写到文件中去;由ostream派生而来

                                                                            fstream读写文件;由iostream派生而来


sstream                                                               istringstream从string对象中读取;由istream派生而来

                                                                            ostringstream写到string对象中去;由ostream派生而来

                                                                            stringstream对string对象进行读写;由iostream派生而来


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