print('"')#打印"
print("'")#打印'
print('I\'m \"OK\"!')#I'm "OK"!
#\n, \t, \\使用与C相同
print('aaaaaaaaaa\n\tbb')
print(r'I\'m \"OK\"!')#r''表示单引号内的字符串不转义
print('''i\'m fubin   
i love zhuqianye
Oh yeah''')             #与Python交互模式区别：交互模式会自动补出...
print(r'''hello,\n
world''')
a='abc'
b='def'
print(a+b)
n = 123
f = 456.789
s1 = 'Hello, world'
s2 = 'Hello, \'Adam\''
s3 = r'Hello, "Bart"'
s4 = r'''Hello,
Lisa!'''
print(n)
print(f)
print(s1)
print(s2)
print(s3)
print(s4)
x=11111111111111111111111111111111111111111111111111111111111111111111111
print(x)