# 分支判断:if...else...
a = 2
b = 3
if a > b:
print('a max!')
else:
print("b max!")
# 判断相等和不相等:运算符(==、!=)
stu = 'wangwu'
if stu == 'wangwu':
print("wangwu,You are on duty today.")
else:
print("Please call wangwu to duty")
if stu !='zhangsan':
print("Please call wangwu to duty")
else:
print("you are on duty today.")
# 判断包含关系:in 和 not in
b = 'hello world'
if 'hello' in b:
print('Contain')
else:
print('Not Contain')
# 判断布尔类型
c = True
if c:
print('c is True')
else:
print('c is false')
# 多重判断
res = 72
if res >= 90:
print('优秀')
elif res >= 70 :
print('良好')
elif res >=60 :
print('及格')
else:
print('不及格')