## Create a directory each day, and can create files in the directory.

 

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1. variable

2. comments

1) #

2) ''''''"   """"

3. input

4. string formatting expressions

1) '....%s...'%(values)

2) '...{}...'  .format(values)

3)  int( )  convert to integer

4) str( ) convert to string

 

5. conditionals and logical operators

1) if....else

2) if .... elif...else

3) while loop

4) for loop

5) break and continue

　　

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