python基础语法

# 流程控制之if...else

---

#(1)

# age_of_girl = 31
# if age_of_girl > 30:
	# print("阿姨好")

---

# (2)

# age_of_girl =18
# if age_of_girl >30:
	# print('阿姨好')
# else:
	# print("小姐姐好")

---

#(3)
# age_of_girl = 18
# height =171
# weight =88
# is_pretty =True
# success = False

# if age_of_girl >= 18 and age_of_girl < 22 and height > 170 and weight < 100 and is_pretty == True:
	# if success:
		# print("表白成功,在一起")
	# else:
		# print("什么爱不爱情的,关我什么事情呢?")

# else:
	# print("阿姨好")

---

# (4)

# text = input(">>:请输入成绩分数")
# text =int(text)

# if text >= 90:
	# print("优秀")
# elif text >= 80:
	# print("良好")

# elif text >= 70:
	# print("普通")
# else:
	# print("很差")

---

# ### 验证密码错误类型

---

# name = input("请输入用户名")
# passwrod = input("请输入密码")

# if name =="黄将用" and passwrod == "123456":
	# print("登录成功")

# else:
	# print("您输入的密码或者账号有误,请从新输入")

---

# while True:
	# name =input("请输入名字")

	# if name == "var1":
			# print("超级管理")
	# elif name == "var2":
			# print("会员管理")
	# elif name == "var3" or name == "var4":
			# print("业务主管")
	# else:
		# print("普通用户")

---

# agevar = 48
# age_var =int(input(">>请输入:"))
# if age_var > agevar:
	# print("你说的年龄有点大了")
# elif age_var <agevar:
	# print("你说的年龄小了,我滴哥")
# else:
	# print("没有错,这年龄就是哥``哈哈")

---

## ### while 循环语句

---

#打印0-10

coent = 0
while coent <= 10:
	print(coent)
	coent+=1

---

#打印0-10 之间的偶数

---

coent = 0
while coent <= 10:
	if coent%2 == 0:
		print(coent)

	coent+=1

---

#打印0-10 之间奇数

---

coent = 0
while coent <=10:
	if coent%2 ==1:
		print(coent)
	coent+=1

---

#死循环

---

# import time
# num = 0
# while True:
	# print(num)
	# time.sleep(1)
	# num+1

---

#练习,要求如下:

---

# 1.循环验证用户输入发用户名与密码
# 2认证通过后,运行用户重复执行命令
# 3当用户输入命令exit时,则退出整个程序

# (1)
# name = "var1"
# passwrod = "12345"
# while True:
	# inp_name = input("用户名>>>:")
	# inp_pwd = input("密码>>>>:")
	# if inp_name == name and inp_pwd == passwrod:
		# print("登录成功-->准备走下面")
		# while True:
			# cmd = input(">>>>:")
			# if not cmd:continue
			# if cmd =="exit":
				# break
			# print("run <%s>"%cmd)
	# else:
		# print("用户名或密码错误")
		# continue
	# break

---

# (2)

name = "mengtongxue"
password = "0521"
tag =True
while tag:
	inp_name=input("请输入姓名>>>:")
	inp_pwd =input("请输入纪念日>>:")
	if inp_name ==name and inp_pwd == password:
		print("你与老婆的纪念日是:5月21日,庆祝吧!")
		while tag:
			cmd = input(">>>>")
		if not cmd:continue
		if cmd == "exit":
			tag = False
			continue
		print("run<%s>"%cmd)
	else:
		print("哟嚯,需要在确定一下是哪天哟")