将一个文本文件复制到另一个文件

cout<< 输入源文件："; cin>>来源; cout<< 输入新文件的名称：" ;; cin>>克隆; ifstream in（source.c_str）; //打开阅读 ofstream out（clone.c_str）; //开放写作 string s; while（getline（in，s）） out<< s<< " \ n"; 返回0; } 解决方案 " Gactimus" < GA ****** @ xrs.net>在消息中写道 news：1100651820.dZSrLYW+T41iUYlgGChJng@bubbanews ..。我写了一个C ++程序，它应该将一个文本文件复制到另一个文本文件。如果我指定要打开和复制的文件，但是当我试图让用户输入文件名时，它工作正常并且我感到难过。谁能让我知道我错过了什么？ 这是我的代码： ifstream in（source.c_str）; //打开阅读 ofstream out（clone.c_str）; //打开写入 ifstream in（source.c_str（））; ofstream out（clone.c_str（））; - ES Kim " ES Kim" < [email protected]>在新闻中写道：cn ********** @ news1.kornet.net: " Gactimus" < GA ****** @ xrs.net>在消息中写道新闻：1100651820.dZSrLYW+T41iUYlgGChJng@bubbanews .. 我写了一个C ++程序，应该将一个文本文件复制到另一个。如果我指定要打开和复制的文件，它可以正常工作但是当我尝试让用户输入文件名时它不会工作而且我很难过。谁能让我知道我错过了什么？ 这是我的代码： ifstream in（source.c_str）; //打开阅读 ofstream out（clone.c_str）; //打开写入 ifstream（source.c_str（））; ofstream out（clone.c_str（））; D''哦！这总是让你愚蠢的错误。谢谢。 一个更快的方法是一次读取所有文件（不循环遍布 行），也许它不会是一个可重新计算的差异，无论如何你可以使用 getline（in，s，char（0））; char（0）是空字符，所以分隔符是空字符（当 不再阅读字符时）。 " Gactimus" < GA ****** @ xrs.net>在消息中写道 news：1100651820.dZSrLYW+T41iUYlgGChJng@bubbanews ..。我写了一个C ++程序，它应该将一个文本文件复制到另一个文本文件。如果我指定要打开和复制的文件，但是当我试图让用户输入文件名时，它工作正常并且我感到难过。谁能让我知道我错过了什么？ 这是我的代码： #include< iostream> #include< fstream> #include< cstdlib> #include< string> 使用命名空间std; int main（） {字符串来源; 字符串克隆; cout<< 输入源文件："; cin>>来源; cout<< 输入新文件的名称："; cin>>克隆; ifstream in（source.c_str）; //打开阅读 ofstream out（clone.c_str）; //打开写作字符串s; while（getline（in，s）） out<< s<< 返回0; } I wrote a C++ program that is supposed to copy one text file to another.It works fine if I specify the files to be opened and copied but when Itry to have the file names inputted by the user it doesn''t work and I amstumped. Can anyone clue me in to what I am missing?Here is my code:#include <iostream>#include <fstream>#include <cstdlib>#include <string>using namespace std;int main(){string source;string clone;cout << "Enter the source file: ";cin >> source;cout << "Enter the name of the new file: ";cin >> clone;ifstream in(source.c_str); // Open for readingofstream out(clone.c_str); // Open for writingstring s;while(getline(in, s))out << s << "\n";return 0;} 解决方案 "Gactimus" <ga******@xrs.net> wrote in messagenews:1100651820.dZSrLYW+T41iUYlgGChJng@bubbanews.. . I wrote a C++ program that is supposed to copy one text file to another. It works fine if I specify the files to be opened and copied but when I try to have the file names inputted by the user it doesn''t work and I am stumped. Can anyone clue me in to what I am missing? Here is my code: ifstream in(source.c_str); // Open for reading ofstream out(clone.c_str); // Open for writingifstream in(source.c_str());ofstream out(clone.c_str());--ES Kim"ES Kim" <[email protected]> wrote in news:cn**********@news1.kornet.net: "Gactimus" <ga******@xrs.net> wrote in message news:1100651820.dZSrLYW+T41iUYlgGChJng@bubbanews.. . I wrote a C++ program that is supposed to copy one text file to another. It works fine if I specify the files to be opened and copied but when I try to have the file names inputted by the user it doesn''t work and I am stumped. Can anyone clue me in to what I am missing? Here is my code: ifstream in(source.c_str); // Open for reading ofstream out(clone.c_str); // Open for writing ifstream in(source.c_str()); ofstream out(clone.c_str());D''oh! It''s always the stupid mistakes that get you. Thanks.a faster way would be reading all the file at once ( not looping throughoutlines), maybe it would not be a remarquable difference, anyway you can usegetline(in,s,char(0));char(0) is the null character, so the delimiter is the null character ( whenreading no more characters)."Gactimus" <ga******@xrs.net> wrote in messagenews:1100651820.dZSrLYW+T41iUYlgGChJng@bubbanews.. .I wrote a C++ program that is supposed to copy one text file to another. It works fine if I specify the files to be opened and copied but when I try to have the file names inputted by the user it doesn''t work and I am stumped. Can anyone clue me in to what I am missing? Here is my code: #include <iostream> #include <fstream> #include <cstdlib> #include <string> using namespace std; int main() { string source; string clone; cout << "Enter the source file: "; cin >> source; cout << "Enter the name of the new file: "; cin >> clone; ifstream in(source.c_str); // Open for reading ofstream out(clone.c_str); // Open for writing string s; while(getline(in, s)) out << s << "\n"; return 0; } 这篇关于将一个文本文件复制到另一个文件的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！ 上岸，阿里云！