#!/usr/bin/env python
#coding=utf-8

a = "Hello"
b = "Python"

print "a + b 输出结果：",a + b
print "a * 2 输出结果：",a * 2
print "a[1] 输出结果：",a[1]
print "a[1:4] 输出结果：",a[1:4]

if("H" in a):
    print "H 在变量 a中"
else:
    print "H 不在变量 a 中"

if("M" not in a):
    print "M 不在变量a中"
else:
    print "M 在变量a中"
print r'\n'
print R'\n'
