是否可以單步執行RoR應用程序？或者只使用調試斷點進行調試？

Question

我讀到你可以在你的RoR代碼中加上一個'調試'符號，然后執行將在那時停止，然后你可以將任何東西吐出到控制台中以查看變量的狀態等。

有沒有辦法逐步執行每一行並遵循執行路徑？

Answer 1

調試器本身有文檔。 n和s是您要查找的命令。

(rdb:1) help
ruby-debug help v0.10.3
Type 'help <command-name>' for help on a specific command

Available commands:
backtrace  delete   enable  help    next  quit     show    trace    
break      disable  eval    info    p     reload   source  undisplay
catch      display  exit    irb     pp    restart  step    up       
condition  down     finish  list    ps    save     thread  var      
continue   edit     frame   method  putl  set      tmate   where    

(rdb:1) help next
n[ext][+-]?[ nnn]   step over once or nnn times, 
        '+' forces to move to another line.
        '-' is the opposite of '+' and disables the force_stepping setting.
(rdb:1) help step
s[tep][+-]?[ nnn]   step (into methods) once or nnn times
        '+' forces to move to another line.
        '-' is the opposite of '+' and disables the force_stepping setting.
(rdb:1) 

Answer 2

這個Railscast劇集也有一些關於ruby-debug的提示。