# 基本运算符

#算数运算符

# +、-、*、/

a = 7

b = 2

print(a % b) #取模 取余数

print(a ** b) #幂

# print(a // b) #取整

# # 比较运算符

# print(a == b)

# print(a != b)

# print(a > b)

# print(a < b)

print(a >= b)

print(a <= b)

#赋值运算

x = 1

print(x)

x = x + 6

print(x)

x += 6

print(x)

x -= 5

print(x)

x *= 3

print(x)

#逻辑运算 and or not

a = 1

b = 2

c = 3

print(a > b and c > b)

print(a > b or c > b)

#链式赋值

x = 1

y = 1

x = y = 1

#增量赋值

a = 1

a += 1

#交叉赋值

a = 1

b = 2

print(a, b)

a ,b = b ,a

print(a, b)

#变量的解压

a, b, c, d = [1,2,3,4]

print(a, b, c, d)

#流程控制

#if

name_bing = “冰哥”

name_qiang = “强哥”

if name_bing > name_qiang:

print(‘冰仔强’)

else:

print(‘强哥强’)

age = input(“你的年龄：”)

age = int(age)

if age < 18:

print(“你还未成年”)

elif age < 30:

print(“青年”)

elif age < 50:

print(“中年”)

elif age < 100:

print(“老年”)

else:

print(“xxx”)

- 如果 成绩>=90，打印“优秀”

- 如果 成绩>=80，并且 成绩<90，打印“良好”

- 如果 成绩>=70，并且 成绩<80，打印“普通”

- 如果 其他情况：打印“差”

score = input(“请输入你的成绩：”)

score = int(score)

if score >= 90:

print(“优秀”)

elif score >= 80:

print(“良好”)

elif score >= 70:

print(“普通”)

else:

print(“差”)

#while 循环

a = 1

while a < 10:

print(a < 10)

a += 1

print(a)

#break 结束本层循环

#continue 跳出本次循环

a = 1

while True:

a += 1

if a == 10:

print(“冰哥DSB”)

continue

elif a == 20:

print(“文中XSB”)

break

print(“啊啊啊”)

#输入三次机会，错误则锁定

#登录成功之后可以执行指令，输入exit之后退出

count = 1

tag = True

while tag:

uname = “aj”

pwd = 123

name = input(“请输入用户名：”)

password = int(input(“请输入密码：”))

if name == uname and password == pwd:

print(“登录成功！！！”)

while True:

cmd = input(“请输入你的指令：”)

print(f"执行{cmd}指令")

if cmd == ‘exit’:

tag=False

else:

if count == 3:

print(“三次输入错误，账户锁定！！！”)

break

print(“账户密码错误！”)

count += 1

最后

以上就是听话大雁为你收集整理的Python学习 day1# 基本运算符#算数运算符# +、-、*、/a = 7b = 2print(a % b) #取模 取余数print(a ** b) #幂# print(a // b) #取整# # 比较运算符# print(a == b)# print(a != b)# print(a > b)# print(a < b)print(a >= b)print(a <= b)#赋值运算x = 1print(x)x = x + 6print(x)x += 6print(x)x -= 的全部内容，希望文章能够帮你解决Python学习 day1# 基本运算符#算数运算符# +、-、*、/a = 7b = 2print(a % b) #取模 取余数print(a ** b) #幂# print(a // b) #取整# # 比较运算符# print(a == b)# print(a != b)# print(a > b)# print(a < b)print(a >= b)print(a <= b)#赋值运算x = 1print(x)x = x + 6print(x)x += 6print(x)x -= 所遇到的程序开发问题。

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