ROS study note

You can choose any editor you like to implement you ROS project. There are some official IDE configuration for ROS : http://wiki.ros.org/IDEs I prefer using VIM. There is an VIM plugin named rosvim we can use. To install it: (I use spf13-vim so it uses vundle to manage VIM plugin) When I run roscore (ROS master) […]

gdb命令笔记

编译的时候: -g 开始调试:gdb [-tui] test 设置断点:(gdb) breakpoint test.c:123 or  (gdb) b main 运行程序(后面可以跟参数):(gdb) run [arg1 arg2] 清除断点:(gdb) clear 跟踪堆栈:(gdb) where 打印参数:(gdb) print f.BlockType 用16进制打印:(gdb) print/x f.BlockType 单步调试(不进入函数内部):(gdb) next or (gdb) n 单步调试(进入函数内部):(gdb) step or (gdb) s 在每个命令后都显示参数:(gdb) display f.BlockType 设定参数:(gdb) set f.BlockType=0 继续运行:(gdb) cont 推出:(gdb) quit

PHP弱类型漏洞总结

首先说下强弱类型,根据维基百科的定义: In computer programming, programming languages are often colloquially classified as strongly typed or weakly typed (loosely typed). These terms do not have a precise definition, but in general, a strongly typed language is more likely to generate an error or refuse to compile if the argument passed to a function does not closely match […]