Detailed explanation of the use of the built-in method get in Python dictionary

pythonDictionary built-in method get application, if we need to get the dictionary value, we have two methods, one is through dict['key'], the other is dict .get() method.

What I want to share with you today is the get() method of the dictionary.

Here we can use the dictionary to make a small game. Suppose the user enters a string in the terminal: "1" or "2" or "3", and the corresponding content is returned. If other input is made, then Return "error"

Some friends here may use if elif elsejudgment statement to operate. It is indeed possible, but it is more cumbersome. I would like to recommend a dictionary get() method which is very convenient.

info = {'1':'first','2':'second','3':'third'}

number = raw_input('input type you number:' )

print info.get(number,'error')

In this way, one line of code get may be able to complete several lines of code for the python judgment statement.

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