[python] 基本語法&用法

variable assign

#one lin comment

"""
multi line comment

"""

#variable assign
x = 1
print x

x += 1

print x

x,y = 1,2
print x,y

x = 1.999
print x

string = "this is stirng"
print string

list:

mlist = [12,45,1]

mlist.append(3)

print mlist

mlist.append(1)

print mlist

print mlist.count(1),mlist.index(1)
print mlist

print mlist.reverse()
mlist.remove(1)

print mlist
print mlist.pop(2)

mlist.append(11);

dictionary

#dictionary

info = {'name': 'lewis'}

print info

info['title']= 'member'
info['age']= '23'
info['locate']= 'taipei'

print info

print info.keys()

print info.get('name')

del info['locate']
print info


#set

channel = set()
channel.add('ylib')
channel.add('zinio')
channel.add('ibobar')

tChannel = {'ibobar','ylib'}

print channel & tChannel
print channel | tChannel
print channel ^ tChannel
print channel - tChannel
print channel - tChannel
print channel | tChannel

String

#String

x = 'i\'m lewis'
print x
y = ',hi1234'
z=x+y
print z

print z[-3]
print z[3:-2]
print z[3:1]

print len(z)

ss='123'

for s in ss:
 print (s , ':')

print z*2

print y in z

#type convertion


i = 10
d = 1.5
f = 3.5
s = "string"
c = 'c'

print int(i+d)
print float(10/2.6)
print i%d
print ord(c)+10
print chr(ord(c)+i)