As you probably know, COMMAND.COM reads a batch file, executes one command line, reads the batch file again, executes the next command line, etcetera. This means each comment line causes one extra reread of the batch file no problem when read from

单例模式，苹果开发程序，要是学习的苹果开发，就知道什么意思啦！-Singleton, Apple Developer Program, if Apple developers to learn, you know what that means it!