摘要： open - Open a file-based or command pipeline channel This command opens a file, serial port, or command pipeline and returns a channel identifier that may be used in future invocations of commands like read, puts, and close. If the first character of fileName is not | then the command opens a fileIf 阅读全文

摘要： socket - Open a TCP network connection socket ?options? host port socket -server command ?options? port 阅读全文