Conditional judgment in Python

Tag: python If condition judgment

#  Condition Judgment # 1print ("#1") age = 20if age >= 18:    print (' Your age is ',  age)     print (' adult ') print ("---------------------") #  2print ("#2") age = 3if age >= 18:    print (' your age  Is ',  age)     print (' adult ') else:    print (' Your age is ') ,  age)     print (' teenager ') print ("---------------------") # 3print ("#3") age  = 3if age >= 18:    print (' adult ') Elif age >= 6:     print (' teenager ') else:    print (' Kid ') print ("--------------------- ") # 4print (" #4 ") s = input (' birth:  ') # input The data type returned is STR, which cannot be compared directly to an integer, with an int () strong to #  Of course, if you enter a non-numeric such as ' abc ', you need to catch the error of the program runtime, and no discussion birth = int (s) if birth < 2000:     print (' 00 ago ') Else:    print (' 00 after ') print ("---------------------") 

Conditional judgment in Python