If you want to display line Numbers every time you enter a vi session, add the line set number to the.exrc file in your home directory.
如果希望每次进入vi会话时都显示行号，那么在主目录中的.exrc文件中添加setnumber行。
If you use the time variable, the single line set time at the start of the script is good enough to display the time it takes to run individual commands.
如果使用time变量，那么只需在脚本的开头加上一行set time，就可以显示各个命令的执行时间。
If you want to ignore case sensitivity on searches every time you enter a vi session, you can add the line set ignorecase to the.exrc file in your home directory.
如果希望每次进入vi会话时都启用不区分大小写的搜索，那么在主目录中的.exrc文件中添加set ignorecase行。
A feasible tie-line set were developed on the base of adjacent matrix, path matrix and path sub-matrix.
结合图论中的邻接矩阵，提出路径矩阵和路径子矩阵的概念及形成方法，进而提出求取可行联络线集合的算法。
A feasible tie-line set were developed on the base of adjacent matrix, path matrix and path sub-matrix.
结合图论中的邻接矩阵，提出路径矩阵和路径子矩阵的概念及形成方法，进而提出求取可行联络线集合的算法。
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