Python 运算符与流程控制

a = b         a = b
a +=  b       a = a+b
a -=  b       a = a - b
a *=  b       a = a * b
a /=  b       a = a / b
a //= b       a = a // b
a %=  b       a = a % b
a **= b       a = a^b

color = input('你白吗?')
rich = int(input('请输入你的资产 0 - 999999999....'))
beautiful = input('你美吗?')


if color == '白' and rich > 100000000 and beautiful == '美':
    print('你是一个白富美,嫁给我吧!')
else:
    print('你是个好人')

if age >= 60 :
    print('老年人')
elif age >= 30：
    print('中年人')
elif age >= 10:
    print('青年人')
else：
    print('儿童')

a = 1
while a < 10: # 当 a >= 10 时，条件不成立
    print(a)
    a += 2  # 等价 a = a + 2