example 1.bmi
height =1.70
print("您的身高：" + str(height))
weight = 48.5
print("您的体重：" + str(weight))
bmi = weight/(height*height)
print("您的BMI指数为："+str(bmi))
#判断身材是否合理
if bmi<18.5:
print("您的体重过轻 ~@_@~")
if bmi>=18.5 and bmi<24.9:
print("正常范围，注意保持 (-_-)")
if bmi>=24.9 and bmi<29.9:
print("您的体重过重~@_@~")
if bmi>=29.9:
print("肥胖 ^@_@^")
example 2.tank
print('''
▶ 学编程，你不是一个人在战斗~~
|
__\--__|_
II===========0000[/ ★007--_|
_____\_________|/-----.
/___sadadadadsad.com___|
\◎◎◎◎◎◎◎◎◎◎/
~~~~~~~~~~~~~~~~~~~~
''')
example 3. erase_zero
money_all = 56.75+38.4+231.3+8.65
money_all_str=str(money_all)
print("商品总额为:" + money_all_str)
money_real = int(money_all)
money_real_str = str(money_real)
print("实收金额:" + money_real_str)
example 4. score_handle
python = 95
english = 92
c = 89
sub=python-c
avg=(python + english + c) / 3
print("Python课程和c语言课程的分数之差：" + str(sub) + "分\n")
print("3门课的平均分:" + str(avg) + "分")
example 5.comparison_operator
python = 95
english = 92
c = 89
#输出3个变量的值
print("python = "+str(python)+" english = "+str(english) + "c = "+str(c) + "\n")
print("python < english的结果:" +str(python < english))
print("python > english的结果:" +str(python > english))
print("python == english的结果:" +str(python == english))
print("python != english的结果:" +str(python != english))
print("python <= english的结果:" +str(python <= english))
print("python >= c的结果:" +str(python >= c))
example 6.sale
print("\n手机店正在打折，活动进行中……")
strWeek = input("请输入中文星期(如星期一) :")
intTime =int (input("请输入时间中的小时（范围：0~23):"))
#判断是否满足活动参与条件（使用了if语句）
if(strWeek =="星期二" and (intTime>= 10 and intTime <=11)) or (strWeek == "星期五" and (intTime >= 14 and intTime <=15)):
print("恭喜你，获得了折扣活动参与资格。快快选购吧！")
else:
print("对不起，您来晚一步，期待下次活动")
example 7 improved_bmi
height = float (input("请输入您的身高(单位为米）："))
weight = float (input("请输入您的体重（单位为千克）:"))
bmi= weight/(height*height)
print ("您的BMI指数为:"+str(bmi))
#判断身材是否合理
if bmi<18.5:
print("您的体重过轻 ~@_@~")
if bmi>=18.5 and bmi<24.9:
print("正常范围，注意保持 (-_-)")
if bmi>=24.9 and bmi<29.9:
print("您的体重过重~@_@~")
if bmi>=29.9:
print("肥胖 ^@_@^")
