书本练习题1print函数使用

文件名为ex1.py
print('hello world')
print('hello agin')
print('I like typing this')
print ("This is fun.")
print ('Yay! printing')
print ("I'd much rather you 'not'.")
print ("I 'said' do not touch this.")
print ('')
代码需要缩进四个空格，整齐规范，print函数括弧里面建议使用双引号。