避免在写入文件时覆盖现有文件的内容 [英] Avoid contents of an existing file to be overwritten when writing to a file

问题描述

我正在尝试制作一个将高分转换成.txt文件的游戏.我的问题是:当我发表这样的声明时:

I am trying to make a game that implements high scores into a .txt file. The question I have is this : when I make a statement such as:

ofstream fout("filename.txt");

这是创建具有该名称的文件，还是只是查找具有该名称的文件?

Does this create a file with that name, or just look for a file with that name?

问题是，每当我重新启动该程序并做出以下声明时:

The thing is that whenever I start the program anew and make the following statement:

fout << score << endl << player; 

它覆盖了我以前的分数！

it overwrites my previous scores!

我有什么办法做到这一点，以便在我写入文件时新的乐谱不会覆盖旧的乐谱?

Is there any way for me to make it so that the new scores don't overwrite the old ones when I write to the file?

推荐答案

std::ofstream默认情况下会创建一个新文件.您必须使用附加参数创建文件.

std::ofstream creates a new file by default. You have to create the file with the append parameter.

ofstream fout("filename.txt", ios::app); 

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