Ruby中与Python的"try"相当的语法是什么？

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Ruby中与Python的"try"相当的语法是什么？

我正在尝试将一些Python代码转换为Ruby。在Ruby中是否有与Python中的try语句相当的语句？

admin 更改状态以发布 2023年5月22日
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2 答案

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 begin
     some_code
 rescue
      handle_error  
 ensure 
     this_code_is_always_executed
 end

细节：http://crodrigues.com/try-catch-finally-equivalent-in-ruby/

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使用这个作为示例：

begin  # "try" block
    puts 'I am before the raise.'  
    raise 'An error has occurred.' # optionally: `raise Exception, "message"`
    puts 'I am after the raise.'   # won't be executed
rescue # optionally: `rescue StandardError => ex`
    puts 'I am rescued.'
ensure # will always get executed
    puts 'Always gets executed.'
end

相等的 Python 代码将是：

try:     # try block
    print('I am before the raise.')
    raise Exception('An error has occurred.') # throw an exception
    print('I am after the raise.')            # won't be executed
except:  # optionally: `except Exception as ex:`
    print('I am rescued.')
finally: # will always get executed
    print('Always gets executed.')

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