编写下面的简单示例来说明如何处理如下类型的错误提示: Global symbol "$c" requires explicit package name at *.pl line 8. Execution of *.pl aborted due to compilation errors. #############Code Starts############### #!/usr/bin/perl -w use s…
配置mysql主从复制,start slave是报错:ERROR 1201 (HY000): Could not initialize master info structure; more error messages can be found in the MySQL error log原因:之前做过主从复制解决办法:mysql> stop slave;Query …
一台计算机上同时安装了python2.7和python3.7。现在为python2.7安装numpy包。失败:error: Unable to find vcvarsall.bat下载安装 Microsoft Visual C Compiler for Python 2.7user installations are disabled via policy on the machine.安装之后:C:\U…
首部 function Languages: TLanguages; $[SysUtils.pas功能 返回系统语言对象说明 通过此函数可以得到系统的语言环境参考 type SysUtils.TLanguages例子 ///Begin Languagesprocedure TForm1.Button1Click(Sender: TObject);var I: Integer;begin Memo1.Clear; for I …