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📜  ruby 代码示例上的名称错误

📅  最后修改于: 2022-03-11 15:04:48.911000             🧑  作者: Mango

代码示例1
irb
2.7.3 :001 > a_variable
NameError (undefined local variable or method `a_variable' for main:Object)
2.7.3 :002 > a_variable = 7
 => 7
2.7.3 :003 > a_variable
 => 7