You can use this option to provide a different path and file name for the Program Database file.
您可以使用这个选项,为程序资料库档提供不同的路径和档案名称。
Indeed, the time to fetch information from a repository — be it a file or database server — far exceeds the lapse required to compile and perhaps even execute a PHP program.
实际上,用于从存储库(文件或数据库服务器)中获取信息的时间远高于编译并且甚至是执行PHP程序所需耗费的时间。
It will be gone when the program finishes if you do not take steps to save it (such as writing it to a real file, or using the shelve module or a database).
如果不保存它(如将它写入一个真正的文件,或者使用shelve模块或数据库),则程序结束时,它将消失。
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