!=不是ruby 1.8中的一个方法，而是硬连接为调用==的否定

#2

3  

Since the second half of the question hasn't been answered yet:

既然问题的后半部分还没有答案:

'A'.send(:==, 'B').send(:!) # Ruby 1.9

!'A'.send(:==, 'B')         # Ruby 1.8

#1

5  

!= isn't a method in ruby 1.8 It's hardwired to be the negation of calling ==

!=不是ruby 1.8中的一个方法，而是硬连接为调用==的否定

#2

3  

Since the second half of the question hasn't been answered yet:

既然问题的后半部分还没有答案:

'A'.send(:==, 'B').send(:!) # Ruby 1.9

!'A'.send(:==, 'B')         # Ruby 1.8
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