print('hello, world')
print('The quick brown fox', 'jumps over', 'the lazy dog')
print(100 + 200)
name = input() print('hello,', name) ###name为变量,print('hello,', name) 实际上等于 print('hello,')+ print(name)
name = input('please enter your name: ') ##### 注意有冒号:
print('Hello, %s' %
'world') :格式化输出