
name1 = '123456789'
print(name1[9:1:-2])
print(name1[1:6:2])
print(name1[2])
z = 'Makebean'.replace('bean','bi')
print(z)
a = 'Hello\000Makebean'
newa = 'p' + a[1::]  #利用两个字符串生成新的字符串；
print(a)
print(newa)
print('I\'m supper star')
x = 'Make'
y = 'Bean'
z = x + y
print(x+y)
print(z)
