目录引言【功能】【代码】【实用函数】1 ：管道函数是什么，应用于什么场景2 return next实现具体处理函数：exec_stmt_return_next1 初始化tuple store场景一：return next返回var类型场景二：return next返回record
I\'m trying to figur开发者_StackOverflow中文版e out how to get rmagick on my app, and then make it work on Heroku?For Rails3, you have to add this specification:
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