The function returns the name of the selected folder, or an empty string if cancel was pressed.
The function returns the name of the selected folder, or an empty string if cancel was pressed.
这个函数返回选择的文件名字，如果按了“取消”按钮，而返回空字符串。
The function returns the name of the selected folder, or an empty string if cancel was pressed.
这个函数返回选择的文件名字，如果按了“取消”按钮，而返回空字符串。