# import !/user/bin/env python
# -*- coding:UTF-8 -*-
string1 = 'hello world1'
print(string1)

string2 = "hello world2"
print(string2)

string3 = '''hello world3'''
print(string3)

string11 = 'hello world1'\
          ' again'
print(string11)

string22 = "hello world2" \
          " again"
print(string22)

string33 = '''hello world3 again '''
print(string33)

'''
三引号充当注释
'''
string333 = '''"'hello world3 again '"'''
print(string333)

string111 = 'hello world3 again'
print(string111)

string3333 = ''''hello world3 again '''
print(string333)

string3333 = ''''hello world3 again'''"'"
print(string3333)