小甲鱼python视频第三讲（课后习题）

1.注意这两个代码的区别

a = 3
b = a 
b = 4
print(b)

a = 3
b = a
a = 4
print(b) 

(在 python中，变量只是贴标签)

 2.

str  = r"C:\\w\e\we\weee""\\"
print("str")

 

3.(版本2.7)

month = int(raw_input("请输入月数："))
day = int(raw_input("请输入天数："))
hour = int(raw_input("请输入小时数："))
minute = int(raw_input("请输入分钟数："))
second = int(raw_input("请输入秒数："))
result = 30*24*60*60*month + 24*60*60*day + 60*60*hour + 60*minute + second
print(result)