# #已知身体质量指数（BMI)的计算公式为BMI=体重/身高平方，
# # （体重的单位为“千克”，身高的单位为“米”）BMI<18.5为，“偏瘦”
# # 18.5<=BMI< 24为正常，24<=BMI< 28位“偏胖”，BMI>=28为，肥胖。？
# h = int(input("请输入你的身高,单位为cm："))
# w = float(input("请输入你的体重kg："))
# bmi = w/(h/100)**2
# if bmi < 18.5:
# print('偏瘦')
# elif 18.5 <= bmi < 24:
# print('正常')
# elif 24 <= bmi < 28:
# print('偏胖')
# elif bmi >= 28:
# print("肥胖")
# else:
# print('请检查一下你是否输入正确！')
# 综合温度和风速的数据判断天气情况
# w = float(input('请输入温度：'))
# s = float(input("请输入风速："))
# if w > 25:
# if s > 8:
# print('天热，风大')
# else:
# print('天热，风小')
# else:
# if s > 8:
# print('天冷，风大')
# else:
# print('天冷，风小')
#
# dict1 = {'姓名':'张三','性别':'女','地址':'毕节'}
#
# for k,v in dict1.items():
# print('{},{}'.format(k,v))
# while True:
# height = float(input('请输入身高,单位为米'))
# if height < 0.3:
# print("你孩子太小，不用收费")
# elif height > 2.5:
# print("你输入错误，这个身高不正常")
# else:
# l_price = 200
# if height <= 1.4:
# print('你门票实际价格{},节约{}'.format(l_price / 2, l_price - l_price / 2))
# else:
# print('你门票实际价格{},节约{}'.format(l_price * 0.9, l_price - l_price * 0.9))
# break
# i = 20
#
# while i > 0 :
# print(i)
# i=i-1
# i =100
# sum = 0
# while i >0:
# sum =sum+i
# i=i-1
#
# print(sum)
# i = 5
# sum = 0
# while i <= 100:
# print(i)
# sum =sum+i
# i+=5
# print('循环体内代码')
# print(sum)
# x = y = z =1
# z = 1
# y = 1
#
# x = 1
#
# x,y = y ,x
#
# x = x+y
# 石头剪刀布案例
# import random
#
# temp = int(input("请选择你的手势【0】：石头，【1】：剪刀，【2】：布"))
# c = random.randint(0,2)
# if temp not in [0,1,2]:
# print('你神经病，乱搞')
# elif (temp==0 and c==1) or (temp == 1 and c == 2) or (temp ==2 and c==0):
# print('电脑出的手势是',c)
# print('你战胜电脑')
# elif (temp==0 and c==0) or (temp == 1 and c == 1) or (temp ==2 and c==2):
# print('电脑出的手势是', c)
# print('平手')
# else:
# print('电脑出的手势是', c)
# print('你输了')
# # for嵌套，for和while 都可以嵌套，例如下列案例。
# for i in range(1,10):
# for j in range(1,i+1):
# print("{}*{}={}".format(j,i,i*j),end= ' ')
# print('\n')
# i=1
# while i<100:
# print("*"*i)
# i+=1
#
# for i in range(1,11):
# print('*'*i)
# j = 10//2
# for i in range(1,10,2):
# print(' '*j,end='')
# j-=1
# print('*'*i)
#打印等腰三角形图形
# j=5
# for i in range(1,10,2):
# print(" "*j,end="")
# j-=1
# print("*"*i)
#案例：9*9乘法表打印
# for i in range(1,10):
# for j in range(1,i+1):
# print("{}*{}={}".format(j,i,i*j),end=' ')
# print('\n')
#
# for i in range(50):
# print(i)
# i=0
# while True:
# i+=1
# if i==50:
# continue
# elif i==100:
# break
# print(i)
#案例： 打印1–100数字，但是遇到5，或者是5的倍数就跳过。代码如下：
# for i in range(1,101):
# if i==5 or i%5 ==0 or i//10==5:
# continue
# else:
# print(i)
# a=0
# if a>0:
# print(a)
# for i in range(1,10):
# print(i)
# print(a)
#
# 案例判断是否是合法的邮件地址,且提取用户名和服务器地址
# temp1 = input("请输入一个邮箱地址")
#
# if temp1.find('@') == -1:
# print("请输入正确的邮箱地址：")
# elif temp1.find('@') == 0:
# print("邮箱第一个字符不能为@：")
# elif temp1.find('@') == len(temp1) - 1:
# print('@不能结尾，请输入正确邮箱')
# else:
# print('用户名为：{},邮箱服务器地址：{}'.format(temp1.split("@")[0], temp1.split("@")[1]))
# 字符串：“”，‘’，'''三引号'''
# str1 = ' nykingkun@126.com'
# str2 = "nykingkun@126.com"
# str3 = '''nykingkun@126.com'''
# temp = str1.find('@')
# print(temp)
# temp1 =str1[::-1]
# print(temp1)
# print(str1.find('@'))
# print(str1.count('n'))
# temp = str1.split('@')
# print(temp[0],temp[1])
#案例：请输入一个邮箱地址：判断邮箱是否合法，提取出其中的用户名和服务器地址
#
# temp = input("请输入一个邮箱地址：")
# if temp.find("@")==0:
# print('第一个字符不能是@!')
# elif temp.find('@')==-1:
# print("你的邮箱地址错误，没有符号@！")
# elif temp.find('@')==len(temp)-1:
# print('邮箱最后一个字符不能是@！')
# else:
# a = temp.split("@")
# print('你的用户名为：{},你的服务器地址为:{}'.format(a[0],a[1]))
# str1 = 'abc'
#
# if 'a' not in str1:
# print('a在str1中')
# else:
# print('没在')
#字符串：什么是字符串
#字符串常见的内建函数
# str.format()
# str.find()
# str.index()
# str.count()
# str.split()
# str.capitalize()
# str.replace()
# str.isdigit()
#字符串计算
# + *
# in not
#字符串下标
#字符串
# str1 = 'kingkun@ 126.com'
# temp = str1.split('')
# print(temp)
#查询模块
# dict2 = {'张三':['男',60,'毕节'],'李四':['男',50,'贵阳']}
# for k,v in dict2.items():
# print(k,v)
#
# print('---'*10)
#增加模块
# input1 = input('请输入你要添加的姓名')
# gender = input("请输入性别")
# age = int(input('请输入你的年龄'))
# address = input('请输入地址')
# temp_list = [gender,age,address]
# dict2 = {'张三':['男',60,'毕节'],'李四':['男',50,'贵阳']}
# dict2[input1] = temp_list
# for k,v in dict2.items():
# print(k,v)
#删除数据模块
# dict2 = {'张三':['男',60,'毕节'],'李四':['男',50,'贵阳']}
# for k,v in dict2.items():
# print(k,v)
# print('-'*14)
# del dict2['张三']
# for k,v in dict2.items():
# print(k,v)
#修改模块
# dict2 = {'张三':['男',60,'毕节'],'李四':['男',50,'贵阳']}
# for k,v in dict2.items():
# print(k,v)
# print('-'*14)
#
# input1 = input('请输入你要修改的姓名')
# gender = input("请输入修改后性别")
# age = int(input('请输入修改后你的年龄'))
# address = input('请输入修改后地址')
# temp_list = [gender,age,address]
# dict2[input1] = temp_list
# for k,v in dict2.items():
# print(k,v)
# dict2 = {'张三':['男',60,'毕节'],'李四':['男',50,'贵阳']}
#
# while True:
# str1 = '学生管理系统'
# print(str1.center(35))
# print('0：查询，1：添加，2：删除,3：修改，4：退出')
# a = int(input("请输入你要选择的操作："))
# if a == 0:
# for k, v in dict2.items():
# print(k, v)
# elif a == 1:
# input1 = input('请输入你要添加的姓名')
# gender = input("请输入性别")
# age = int(input('请输入你的年龄'))
# address = input('请输入地址')
# temp_list = [gender, age, address]
# dict2[input1] = temp_list
# for k, v in dict2.items():
# print(k, v)
# elif a == 2:
# temp = input("请输入你要删除的姓名")
# for k, v in dict2.items():
# print(k, v)
# print('-' * 14)
# del dict2[temp]
# for k, v in dict2.items():
# print(k, v)
# elif a == 3:
# for k, v in dict2.items():
# print(k, v)
# print('-' * 14)
# input1 = input('请输入你要修改的姓名')
# gender = input("请输入修改后性别")
# age = int(input('请输入修改后你的年龄'))
# address = input('请输入修改后地址')
# temp_list = [gender, age, address]
# dict2[input1] = temp_list
# for k, v in dict2.items():
# print(k, v)
# elif a==4:
# break
# 学生管理系统案例
# dict1 = {'姓名':['性别','年龄','地址']}
# while True:
# print("*"*10,'学生管理系统',"*"*10)
# temp = int(input("查看学生信息请选择0，添加请选择1，删除请选择2，修改请选择3，退出选择4："))
# if temp ==0:
# for k,v in dict1.items():
# print(k,v)
# elif temp == 1:
# name = input("请输入学生姓名：")
# gender = input("请输入学生性别：")
# age = input("请输入学生数字年龄：")
# address = input('请输入学生地址：')
# lis_temp = []
# lis_temp.append(gender)
# lis_temp.append(age)
# lis_temp.append(address)
# dict1[name] = lis_temp
# print('你成功添加"{}"信息，所以信息如下：'.format(name))
# for k, v in dict1.items():
# print(k, v)
# elif temp ==2:
# name = input("请输入需要删除学生姓名：")
# del dict1[name]
# print('移除成功')
# for k, v in dict1.items():
# print(k, v)
# elif temp ==3:
# name = input("请输入需要修改学生姓名，如果要修改姓名请删除重新添加：")
# dict1[name][0]=input("请输入修改学生性别：")
# dict1[name][1] = input("请输入修改学生数字年龄：")
# dict1[name][2] = input('请输入修改学生地址：')
# print('修改成功')
# for k, v in dict1.items():
# print(k, v)
# elif temp ==4:
# break
#
#查询
# list1 = ['字符串',10,['abc']]
# print(list1[2])#使用下标进行查询，下标从0开始
#
# #增加
# list1 = ['字符串',10,['abc']]
# temp= 'aaaa'
# list1.append(temp)#结尾增加元素
# print(list1)
#插入
# list1 = ['字符串',10,['abc']]
# print('原来的字符串',list1)
# temp = 'aaaa'
# list1.insert(1,temp)#在指定位置删除元素
# print('插入后字符串',list1)
#修改
# list1 = ['字符串',10,['abc']]
# print('原来的字符串',list1)
# temp = 'aaaa'
# list1[1]=11
# print('插入后字符串',list1)
#删除
# list1 = ['字符串',10,['abc']]
# print('原来的字符串',list1)
# list1.remove(10)#移除指定元素
# list1.pop(0)#弹出指定元素，如果不带参数，弹出最后一个
# print('删除后字符串',list1)
#元组
# tuple1 = (1,2,3,4)
# for i in tuple1:
# print(i)
# #元组(不能修改）但是有嵌套（嵌套内部可以修改）的一定要注意
# tuple1 = (1,2,3,4,[1,2,4])
# print(tuple1)
# tuple1[4][2]=3
# print(tuple1)
# #集合案例 集合是无序的，没有下标，不能用下标索引。
# list1 = [1,2,3,4,5,6,1,2,3,4,5,6,7,]
# set1 = {1,2,3,4,5,6,1,2,3,4,5,6,7}
# tuple = (1,2,3,4,5,6,1,2,3,4,5,6,7,)
#
# temp = set(tuple)
# temp2 = list(set1)
# print(temp)
# print(temp2)
#
# set1.pop()
#
# list1.pop()
# 字典：{'key':'value'}
# 函数：系统内置函数，自定义函数
# print()
# input()
# 案例自定义函数：带参数，不带参数，带返回值，不带返回值
# def sum_1():
# a=1
# b=2
# print(a+b)
# 案例带参数，并且默认参数
# def sum_2(a=0,b=0):
# print(a+b)
# 案例 带参数：默认，1个参数，多个参数，不定长参数。
# def add(a,b):
# print(a+b)
# def abc(*args,**kwargs):
# if len(args) > 1:
# print(sum(args))
# else:
# print(kwargs)
# 不定长参数案例
# def abc(a,b,*args,**kwargs):#定义可变长函数
# print("参数a={}，b={},args={},kwargs={}".format(a,b,args,kwargs))
#
# abc(1,2,3,4,5,6,7,[1,2,3,],(1,2,3),p=0,k=1) #函数调用
#带返回值函数
# 带参数+带返回值
# def add(a,b):
# temp = a+b
# return temp
#
# print(add(1,2))
# 无参数，有返回值
# def add():
# a=10
# b=20
# return a+b
#
# temp = add()
# print(temp)
#无参数，有返回值
# def abc():
# return {"abc":10}
#
# temp = abc()
#
# print(temp)
# 有参数，有返回值
# def abc(a,b):
# return {a:b}
#
# temp = abc('king',10)
#
# print(temp)
# 学生管理系统案例(函数版本)
dict1 = {'姓名':['性别','年龄','地址'],'King':['men',10,'毕节']}
temp=0
def suru():
"""这个函数的目的是输入选择数字"""
print("0：查询，1：增加，2：删除，3：修改，4：退出")
global temp
temp = int(input("请输入一个数字"))
def chaxun():
"""查询数据库中的信息"""
for k,v in dict1.items():
print(k,v)
def abc():
'''添加到数据库'''
xingbie = input('请输入性别')
nianl = input("请输入年龄")
dizhi = input("请输入地址")
dict1[xingming] = [xingbie, nianl, dizhi]
while True:
suru()
if temp == 0:
chaxun()
elif temp == 1:
xingming = input("请输入要添加的姓名")
abc()
chaxun()
elif temp == 2:
xingming = input("请输入要添加的姓名")
if xingming in dict1.keys():
del dict1[xingming]
else:
print('没有此人，无法删除')
chaxun()
elif temp == 3:
xingming = input("请输入要添加的姓名")
if xingming in dict1.keys():
abc()
chaxun()
else:
print('没有此人，无法修改')
elif temp == 4:
break
else:
print("你输入错误，请重新输入")
Processed:
0.022, SQL:
12
