python基础篇

python脚本开头

#!/usr/bin/env python
# -*- coding: utf-8 -*

print "你好，世界"

不要问为什么，记住就好了

变量定于的规则

1. 变量名只能是字母、数字或下划线的任意组合
2. 变量名的第一个字符不能是数字
3. 以下关键字不能声明为变量名

['and', 'as', 'assert', 'break', 'class', 'continue', 'def', 'del', 'elif', 'else', 'except', 'exec', 'finally', 'for', 'from', 'global', 'if', 'import', 'in', 'is', 'lambda', 'not', 'or', 'pass', 'print', 'raise', 'return', 'try', 'while', 'with', 'yield']

python的注释

• 当前行注释：

#被注释的内容

• 多行注释：

"""被注释的内容"""

也可以是打印多行

#!/usr/bin/env python
# -*- coding: utf-8 -*
name = """
你好世界
我是honry
我喜欢python
"""
print(name)

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input（用户输入）

#!/usr/bin/env python
# -*- coding: utf-8 -*
name = input("you name:")
passwd = input("you passwd:")
print(name,passwd)

aaarticlea/png;base64,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" alt="" />

info

%s 引用

#!/usr/bin/env python
# -*- coding: utf-8 -*
name = input("you name:")
passwd = input("you passwd:")
info = '''
--------- info  %s
name:%s
passwd:%s
''' % (name,name,passwd)
print(info)

aaarticlea/png;base64,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" alt="" />

%d 引用

#!/usr/bin/env python
# -*- coding: utf-8 -*
name = input("you name:")
passwd = input("you passwd:")
age = int(input("you age:"))  ## int 强制转换为数字类型
print(type(age))               ## 打印类型
info = '''
--------- info  %s
name:%s
passwd:%s
age:%d
''' % (name,name,passwd,age)
print(info)

aaarticlea/png;base64,iVBORw0KGgoAAAANSUhEUgAAAsoAAAC3CAIAAACE1+8hAAAM1ElEQVR4nO3dzXXjvBkGUFSStIES0ohQhqeCYOcqvP2wnyq8GFYQNcEs+E+KMuXBjCz53pPjkWkQ4rfikxcg39ACAFQV7n0BAMCzES8AgMqeJ140P2P4EeLP5t4XAgDf3fPEi7Zty1tI7/e+CAD49p4pXjT5Nebzva8CAL69x40XJYVUVkdeVkcAgDs4FC9SCCGEVNq2TB/bJscQQoi5adv+L+OQi7f57uSUc5xOG6cJIZXuc4wxhHg6xWnM6rsuO+f4ejq9hvBjtkTynsKPELrYcc7xJYRuzMuszrEd8xLzud/MEV6vfScAsHWwelHScGcvufvQ5BhzM/07Kyds6wqzefqMsB1cUkj/tCWFmJvxZ/en8Tumy7jgPU2x4K20bRc4ctO25W3Y8jmMad/TNOattG3b/IzjmD6dnPPJRlEAuN3RxZH+Dl/SEBwu54MD8WIzpq+IhNDHi1QWPxcjduoibTvLB7d+CD9C97/hqZOSXnPTNvlN3QIAPuP43otufWK8u+9XL0raDwH7WaTJcTdeTN/RNs3eLX98bGT8MGSIkoalkO2Y6WGT8zRzeVuungAAt7hla+dqaWKzH6I/kNLO7ouhCNElh7EU0X2Op1MM4V//niZIaZp9vkFjmm2WdV5D+BHCWxk2UsR8HjZS9FsxPhiz2GMxLp0AALe7IV5MCyNPrsmv3+S/FAD+iBufHHlu86oGAPBZj/veCwDgixIvAIDKxAsAoDLxAgCoTLwAACoTLwCAysQLAKAy8QIAqOzJ4sWqMQoAcAdPFi/aq/1aB2PL9W78S98xdegzsj0yDJ01Sxv7rE5v+Rzbl+hXAsD39s3iRZcAptd+z9qLnHN8if/937zhyNRqte0ixdh59X3zDeccX4b+rq9eKw7At/bc8eJi1CjpZR4gZp/nTVO7PDHWId5TeEvD4Ka8r9rCixQAMLmxpdm8kfqyIXtJ8yGX6wdlarQ+9XHf9lofGrdPg+ZHfrUlLZq2D+f1jd1jvL44cs5xGSP6q5jng3OOLyH+HEZ1/dnHE88lvw2LI13gOOf4ejq9Bh3RAKA9XL0oabzT5+5Dk2PMzfTvrFRwZXmi9HHg2lnb09dHuqspKZWmlCmlDNdzPV50WWE1/6VMMOy0KKkbP51Y8pA8yluIP5v2PU3rJm+zXAIA39LRxZH+7l3SrFawFwuux4vNmKk0sapfxFmRYXmkpJhzWp/y4be3bds2P+Pi9v+ewsvl8d3IxS7OzbbNccw453p+APh+ju+9WD3zuV+9KGn/0dCSws5ZU9VhqI/MEsP2SAoh5XGS2fVc+/a2nT390bbLSsa5lHNb3uaPgSxKGuOJF8a8p/A6/OdYHAHg27tla+e0QtK27XrvxXSg3xaxt/sixrgoOwyFidMpdlsrxs0Y46Dtka6MMi2NTPMsvn1ZyRgfHP3RrV80+XVWlujywXtaP246P3EME+sxw1SyBQDcFC+mhZHPO/BSCgDgwd345Mjv6XdZxO2DGwDA83i+914AAHcmXgAAlYkXAEBl4gUAUJl4AQBUJl4AAJWJFwBAZeIFAFCZeAEAVPa48aKkl1UX0+0RAOAOHjReNPl1eEf5OceX+N//rY9oLQYA9/Io8WLVC62kl/HXkl7zr80RbU0A4F5ubGlWZt3Nlg3ZS5oP2W1/NvZWXzdknzdc37R639fk11WhYnsEAPirDlYvShru9SV3H5ocY26mf2cFhitd17djth/GGacv3b2q9SLI9ggA8LcdXRzp7/klDcHhSFC4ZKpV9GPGesYYYNKqmHHRewovy79ujwAA93B870UXA8b79371oqT9WDCMaXLczSLTjG3TXK5evKfp2ZBzKedLRwCAO7lla+dqsWKzQ6I/kNK13RddbSKeTnE4dVatWBc0Fhs0ZsnmdXgA9UcIr/nX5oh9nQBwRzfEi2lhpKZ5bri6qgIAPIgbnxz5A8ZSxcFnRQCAL+5R3nsBADwM8QIAqEy8AAAqEy8AgMrECwCgMvECAKhMvAAAKnuIeFHrdVte2wUAf0O1eDG8HevPvNnzwvu2PpEVPmzBCgBUcGu8uP5m8D9RHph1OFsdP92UFS7P82fedA4A39pN8eLD9PDlVh+anD+6ni93zQDw6G5qyP7hbfir3aoPXo9FEwCo6Wi8uHAH/qBt+uUhU/f1Yb7tkSNXc2nWlHOcppn1ef94R8iR7AQAHHMwXmzLAE2O3aErHdXHX7cfrsx80Pa7umDxuQ7vX63uAgAP7PjiyF50uDJmXkJYVRrmlYrtkd+5nk/EC9kCAGr69NbOsXox3z65c8ufxpY8LYnsHfnExbQfxItS9meWLQCgst94MHWoTHRlh3GbxaIQ0RcmTqcYQsy/5qP6ebZHDl3FclfF8Hsqy20ZH7+Mw4OpAFDdQ7y1EwB4JOIFAFCZeAEAVCZeAACViRcAQGXiBQBQmXgBAFQmXgAAlYkXAEBl4gUAUJl4AQBUJl4AAJWJFwBAZeIFAFCZeAEAVCZeAACViRcAQGXiBQBQmXgBAFQmXgAAlYkXAEBl4gUAUJl4AQBUJl4AAJWJFwBAZeIFAFCZeAEAVCZeAACViRcAQGXPHS9KCql8OKrJMYQQjgzd+5bfOBsAns5zx4smn3Lz4ZjYRYNjWeSy3zkXAJ7Nc8eLI6okA/ECACbihXgBAJUdihcprPznP1/ryKVbe7cjYvpTv0Mi5xhCiLlpp00Xy0n6o/HDZZXlly1m3sxz4dt3xoRUthcPAI/kuasXq6JCSf2dfH58NabJMeZm+vfwF61m3s6zP6YtaRwzfGnJt8QbAPhKvlu86H69Ei8ujjn+Rbd+WNdO+sRRksIFAI9LvKhVvVjNfLF6sTOmbdumWa6XSBcAPLDnjRez0sDw3Onwy7Cz4Z/Z5oud/RC3fNNs5rKe5/qYsEpBN+37AICv5nnjxcOyMALAoxMvvg6PiwDwJMQLAKAy8QIAqEy8AAAqEy8AgMrECwCgMvECAKhMvAAAKhMvAIDK7hsv+jbl3iMFAM/k7tWLmxqTAgAPQLwAACr7+/Fir0k6APAkDsWLbodEznHep3zeS7zJMYQYYwjxdIo3NTcvaTPzpVbmR8aEVPQFA4D7O1i9KKm/k4/FhsWHf9qSQszN+LP7U5PjcPvfDRjbmYezxrOvjJlmnr6i5P0wAwD8ecfjxSpVjHWCEPp4kcri52LEfjnhcl458GE9c584SlK4AID7+nS8GD40Oe7Gi6n+0DbNfvViNfPF6sXOmMXM3XqJdAEAd3Z870Xok8NYMOg+x9MphvCvf4cQUkrjz/7mP9+g0Zvv5SyXZ760r2JnzDJOXFmEAQD+lrs/mFqThREA+AqeI154XAQAvpDniBcAwBciXgAAlYkXAEBl4gUAUJl4AQBUJl4AAJWJFwBAZeIFAFDZF4kX2oUAwPP4IvGiXfYiufjn2V/HhiNjJJm1UF3OMu+CNnVZDWNDtEutSwCA3/EI8WL9yu8mn4bGZSX17eDHVmZNjsv+acOJTSmbbmclhXVTVgDgd33NeLG92e/9dTNy/ceUduPFrKs7AFDPoXhRpkbrYVEmWFYVpgWKYdD8yK+u1DA1bR/O6xu7x3itfnC5urAMCLNSRfdrzM10YsmnU1xcX0khZYsjAFDbwepF6ePAdD+fbtubD/OzFkeGG34qUylhmHG5qHHpAtZ/vVx8GAYOezWmE0ueLakMcaefQSEDAOo5Hi82GWIqTazqF/Mb9fJISTHntD5lL51cvIDp9508UFK3GyMsbFdQ/mmbHK8sxwAAn3Q8Xgw1hlX1Yqo6jNWB2XrE5kgKIeV5qWCYsaSrCxSL2/88FzQ5L7Z2rnPH7Ks3Y6axqhcAUM8N8SLGZRmgL0ycTrHbWrF9WnR7pFuzWO6y7ObpN2WMj5nOosb6odNlZWLcR7GtU0zfPyaY5d6QaYRwAQDV3Lo4AgDwgeNPjvh/+ADAIV/nvRcAwJMQLwCAysQLAKAy8QIAqEy8AAAqEy8AgMrECwCgMvECAKhMvAAAKvu78eJQWxIA4LH9zXjR5NOsZ2nXEn15RMAAgCfwp+PFvBfa+vM/u38FAB7Y0XgxLmKsG7LPVzb6QR+3PmtyXA3aHgEAHtStDdmvfBgTQklXk4JsAQDP7fDiyFSrWG/KHJLBvJqxu8xR0rq4sT0CADy0G6sXTY7rosVoVoNomot5oclxPKfJuVw6AgA8uhurF/F0ikO9YlatWBc0Fhs05ps3Z2L+tTmiiAEAT+DTT4546AMAuOzzD6bOXoil7gAATLwUHACoTLwAACoTLwCAysQLAKAy8QIAqEy8AAAqEy8AgMrECwCgMvECAKhMvAAAKhMvAIDKxAsAoDLxAgCoTLwAACoTLwCAysQLAKAy8QIAqOz/gHpuQTHmYYYAAAAASUVORK5CYII=" alt="" />

%d是转换为数字类型，还有%f是转化为浮点。常用的是%s和%d

info2

#!/usr/bin/env python
# -*- coding: utf-8 -*
name = input("you name:")
passwd = input("you passwd:")
age = int(input("you age:"))
print(type(age))
info2 = '''
--------- info  {_name}
name:{_name}
passwd:{_passwd}
age:{_age}
''' .format(_name=name,
            _passwd=passwd,
            _age=age)
print(info2)

aaarticlea/png;base64,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" alt="" />

在某种特定的环境下，你只能使用info2来进行拼接。

引用 getpass模块

#!/usr/bin/env python
# -*- coding: utf-8 -*
import getpass      # 引入getpass模块
name = input("请输入用户名：")
passwd = getpass.getpass("请输入密码：")

print (name,passwd)

用PyCharm运行会卡住，所以用电脑终端运行

aaarticlea/png;base64,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" alt="" />

会发现，当你输入密码时会看不到密码

if判断之流程控制

#!/usr/bin/env python
# -*- coding: utf-8 -*
_name = "honey"
_passwd = ""
name = input("请输入用户名：")
passwd = input("请输入密码：")

if _name == name and _passwd == passwd:
    print("欢迎用户",name,"login..")
else:
    print("账号密码错误，请重新输入")

如果账号密码正确

aaarticlea/png;base64,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" alt="" />

如果账号密码不正确

aaarticlea/png;base64,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" alt="" />

if多重判断

#!/usr/bin/env python
# -*- coding: utf-8 -*
honey_age = 22
age = int(input("honey的年龄："))  #由于是数字，所以需要int转换，不然报TypeError: unorderable types: int() > str()
if honey_age > age :
    print("猜大点...")
elif honey_age < age :
    print("猜小点...")
else:
    print("蒙对了")

运行三次，结果分别如下

aaarticlea/png;base64,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" alt="" />

aaarticlea/png;base64,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" alt="" />

aaarticlea/png;base64,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" alt="" />

while 死循环

#!/usr/bin/env python
# -*- coding: utf-8 -*
count = 0
while True:
    print("count:",count)
    count = count + 1

运行的结果就是不断的打印

aaarticlea/png;base64,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" alt="" />

break 跳出循环

#!/usr/bin/env python
# -*- coding: utf-8 -*
count = 0    #定义次数
honey_age = 22
while count <3:          #定义count不能大于三，也就是说有三次机会
    age = int(input("honey的年龄："))
    if honey_age == age :
        print("猜对了")
        break       #如果猜对就跳出，结束
    elif honey_age < age :
        print("猜小点...")
    else:
        print("猜大点...")
    count +=1        #如果没猜中三次，就计数
else:
    print("三次机会用完了")

如果才对就会跳出循环，猜错就会循环三次后跳出

aaarticlea/png;base64,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" alt="" />

for循环

#!/usr/bin/env python
# -*- coding: utf-8 -*
for i in range(10):
    print("你好",i)

运行如下

aaarticlea/png;base64,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" alt="" />

打印整数

#!/usr/bin/env python
# -*- coding: utf-8 -*
for i in range(0,10,2):
    print("你好",i)

运行如下

aaarticlea/png;base64,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" alt="" />

for 流程控制（是否进行）

#!/usr/bin/env python
# -*- coding: utf-8 -*
count = 0    #定义次数
honey_age = 22
while count <3:          #定义count不能大于三，也就是说有三次机会
    age = int(input("honey的年龄："))
    if honey_age == age :
        print("猜对了")
        break       #如果猜对就跳出，结束
    elif honey_age < age :
        print("猜小点...")
    else:
        print("猜大点...")
    count +=1
    if count == 3:
        _count = input("你还要继续吗？如要退出请输入n，继续任意键")
        if _count != "n" :
            count = 0      #赋值为0继续下去

运行如下

aaarticlea/png;base64,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" alt="" />

continue  跳出本次循环，继续下一次循环

#!/usr/bin/env python
# -*- coding: utf-8 -*
for n in range(10):
    if n < 3 :
        print("次数",n)
    else:
        continue    #break是直接跳出整个循环
    print("contiue跳出本次循环，继续到下次循环")

运行如下

aaarticlea/png;base64,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" alt="" />

for循环之循环套循环

#!/usr/bin/env python
# -*- coding: utf-8 -*
for n in range(10):
    print("次数",n)
    for i in range(10):
        print("--------------",i)

运行如下

aaarticlea/png;base64,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" alt="" />

可以看的出。每打印一次n就打印十次i。