#猜字谜游戏：猜测用户输入的字符是否是9527
number = 9527
guess = input('请输入猜测数字：')
print(guess)
print(type(guess))
guess =int(guess)
print(type(guess))
if guess == number:
print('猜对了')
elif guess < number:
print('猜小了')
else:
print('猜大了！')
#
number = 9527
init = 1
while True:
# 若init大于3结束循环
if init > 3:
print('猜错3次，gun吧!')
break
guess = input('请输入猜测数字：')
guess = int(guess)
if guess == number:
print('猜对了')
break
elif guess < number:
print('猜小了')
else:
print('猜大了！')
init +=1
基本运算符:
- 算术运算符
+: 加
-: 减
*: 乘
/: 除 保留小数
//: 整除 不保留小数
%: 取余数 先除再取余。
'''
# - 算术运算符
print(1 + 1) # 2
n1 = 1
# n1 = n1 + 1 # n1 += 1
# print(n1) # 2
n1 += 1
# 赋值运算符: -=
print(10 - 1) # 9
# *=
print(12 * 12) # 144
print(11 / 3) # 3.666...
print(11 // 3) # 3
print(11 % 3) # 2
# 比较运算符
print(1 == 2) # False
print(1 > 2) # False
print(1 < 2) # True
print(1 >= 2) # False
print(1 <= 2) # True
# is: 比较两个变量的id是否相等
x = 10
print(id(x) == id(x)) # True
print(x is x) # True
# 逻辑运算符
# and: 左右两边的条件都为True才为True，否则为False
print(x == 1 and x == 10) # False
print(x == 10 and x == 10) # True
# or: 判断两边的条件是否成立，其1成立则为True
print(x == 10 or x == 1) # True
# not: 取反
print(x == 10) # True
print(not x == 10) # False
# no-->and-->or
# True or False
print(not x == 1 or x == 10 and x == 20) # True
# 链式赋值
n = 10
y = n
z = y
print(n, y, z)
n = y = z = 10
print(n, y, z)
# 交叉赋值
x = 10
y = 20
# x与y的值互换
# x = 20 y = 10
z = x # 10
x = y # 20
y = z # 10
x = 10
y = 20
# 10, 20 = y=10, x=20
x, y = y, x
print(x, y) # 20 10
# 解压缩赋值
# 0 1 2
list1 = [1, 2, 3]
x = list1[0]
y = list1[1]
z = list1[2]
print(x, y, z) # 1 2 3
x, y, z = list1
print(x, y, z) # 1 2 3
