摘要: 程序执行时默认会打开3个流,标准输入、标准输出、标准错误。 Redirection The shell interprets the symbols <,>, and >> as instructions to reroute a command's input or output to or fr 阅读全文
posted @ 2019-01-01 15:32 Hopkins'Cybernetics 阅读(268) 评论(0) 推荐(0) 编辑