Python_00_Python tuples

　　　　1. Definition of tuples: tuple list similar However, the data within the tuples can not be changed

　　　　2. Statement tuples: T = (l, 2,3)

　　　　　　Note: tuple defining a plurality of elements, separated by commas middle, but the need to add a comma at the end of the definition of a tuple element, will not be added if not defined as a tuple

 

 　　　　3. tuple lookup:

　　　　　　1) Press the standard look: the list is the same

　　　　　　2) index () list with the same

　　　　　　3) count () with the same list

　　　　　　4) len () list with the same

　　　　　4. Modify the tuple , although not modify the content of the tuple, but if there exists a list, it is also possible to modify

　　　　　　例如：tuple1=(1,2,["a","b","c"],3,66)

　　　　　　tuple[2][0]="aaa"

　　　　　　print(tuple) # tuple1=(1,2,["aaa","b","c"],3,66)