我正在尝试使用eval
在Ruby中动态创建本地变量并改变本地变量数组。我是在IRB中进行的。
eval "t = 2"
local_variables # => [:_]
eval "t"
# => NameError: undefined local variable or method `t' for main:Object
local_variables << "t".to_sym # => [:_, :t]
t
# => NameError: undefined local variable or method `t' for main:Object