Day4--python operator

operator a) arithmetic operators

b) Relational operators

True, non-0,false <=0 false a = 10b = 20b + = ab + = AC = 100c = Aprint (b) print (c) print (a ==b) print (a<=b) print (a ==b) #判断a is equal to Bprint (a<=b) The first result returns false, the second returns true result c) logical operator

Print ((A + B < c) and a < C) if both left and right are true, the result print ((A + B > C) or a < C) has a true return true result precedence descending level: ()----> negate not ----> and----> or OR

Day4--python operator