std::filesystem::path::remove_filename
文件系统：：path：：Remove[医]文件名
| path& remove_filename() | (1) | (since C++17) |
|---|
移除单个文件名组件。
如果路径没有文件名组件%28，则行为未定义has_filename回报false29%。
参数
%280%29
返回值
*this...
例外
%280%29
例
二次
#include <iostream>
#include <filesystem>
namespace fs = std::filesystem;
int main()
{
std::cout << fs::path("/foo").remove_filename() << '\n'
<< fs::path("/").remove_filename() << '\n';
}
二次
产出：
二次
"/"
""
二次
另见
| filename | returns the filename path component (public member function) |
|---|---|
| replace_filename | replaces the last path component with another path (public member function) |
| has_filename | checks if the corresponding path element is not empty (public member function of Template:cpp/filesystempath/title) |
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