书本练习题9print函数使用

换行符\n的使用,\n 是换行作用，\n 前面的代码会先被程序执行，后面的则在下行执行
print 打印多行代码时需要使用""" """ 6个双引号，单行使用"",单个字符可以使用''引号
days = "Mon Tue Wed Thu Fri Sat Sun"
mothons = "\nJan\nFeb\nMar\nApr\nMay\nJun\nJul\nAug"

print ("Here are the days:",days)
print ("Here are the monthons:",mothons)

print ("""
There 's something going on here.
With the three double - quotes.
We'll be able to type as much as we like.
Even 4 lines if we want ,or 5,or 6.
""")
输出结果 ：

Here are the days: Mon Tue Wed Thu Fri Sat Sun
Here are the monthons:
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug

There 's something going on here.
With the three double - quotes.
We'll be able to type as much as we like.
Even 4 lines if we want ,or 5,or 6.

如果去掉 Jan前面的\n 那结果是

Here are the days: Mon Tue Wed Thu Fri Sat Sun
Here are the monthons: Jan
Feb
Mar
Apr
May
Jun
Jul
Aug

There 's something going on here.
With the three double - quotes.
We'll be able to type as much as we like.
Even 4 lines if we want ,or 5,or 6.