Python a little bit of common sense

Source: Internet
Author: User

In Python, there are two variable-length parameters, the tuple (non-keyword argument) and the dictionary (keyword parameter), whose parameters represent an arbitrary-length tuple [tuple] at the beginning of a *, and can receive successive strings of arguments, with the argument starting with two * to represent a dictionary [dict], or "key:value , accept any number of consecutive arguments.

  1. # # #示例函数 # #
  2. def Variable(*arg, * *Kwargs):
  3. Print arg
  4. print Kwargs
  5. print "\ n"
  6. # # #执行输出tuple # #
  7. >>> Variable(1,2,3,4,5,"www"," I-it "," info ")
  8. (1, 2, 3, 4, 5, ' www ', ' i-it ' , ' info ')
  9. {}
  10. # # #执行输出dict # #
  11. >>> Variable(www=1,IIT=2,info=3)
  12. ()
  13. {' info ': 3, ' IIT ': 2, ' www ': 1}
  14. # #一起来 # #
  15. >>> variable ( Span class= "lit" >1,2,3 ,4,5 www=1,iit =2,info= 3)
  16. (1, 2, 3, 4, 5)
  17. {' info ': 3, ' IIT ': 2, ' www ': 1 }

Python a little bit of common sense

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