(1) pass keyword:
Used in:①class;②function;③select statement
Expression means: empty statement
The purpose is: for the implementation of the temporarily undetermined functions; to reserve space for future software upgrades, etc.
#in classclass TestClass :pass#in functiondef TestFunction():pass#in choose constructiona = 3if a > 5 :print('a>5')else :passprint(a,'lalaland')for i in range(a):pass(two)
