importsmtplibfromemail.mime.textimportMIMETextfromemail.utilsimportformataddrmy_sender='429240967@qq.com'#发件人邮箱账号my_pass='xxxxxxxxxx'#发件人邮箱密码my_user='429240...
import smtplibfrom email.mime.text import MIMETextfrom email.utils import formataddr my_sender='429240967@qq.com'    # 发件人邮箱账号my_pass = 'xxxxxxxxxx'              # 发件人邮箱密码my_user='429240967@qq.com'      # 收件人邮箱账号，我这边发送给自己def mail():    ret=True    try:        msg=MIMEText('填写邮件内容','plain','utf-8')        msg['From']=formataddr(["FromRunoob",my_sender])  # 括号里的对应发件人邮箱昵称、发件人邮箱账号        msg['To']=formataddr(["FK",my_user])              # 括号里的对应收件人邮箱昵称、收件人邮箱账号        msg['Subject']="菜鸟教程发送邮件测试"                # 邮件的主题，也可以说是标题         server=smtplib.SMTP_SSL("smtp.qq.com", 465)  # 发件人邮箱中的SMTP服务器，端口是25        server.login(my_sender, my_pass)  # 括号中对应的是发件人邮箱账号、邮箱密码        server.sendmail(my_sender,[my_user,],msg.as_string())  # 括号中对应的是发件人邮箱账号、收件人邮箱账号、发送邮件        server.quit()  # 关闭连接    except Exception:  # 如果 try 中的语句没有执行，则会执行下面的 ret=False        ret=False    return ret
展开

class Role(db.Model):
@staticmethod
def insert_roles():
roles = {
'User': (Permission.FOLLOW |
Permission.COMMENT |
Permission.WRITE_ARTICLES, True),
'Moderator': (Permission.FOLLOW |
Permission.COMMENT |
Permission.WRITE_ARTICLES |
Permission.MODERATE_COMMENTS, False),
'Administrator': (0xff, False)
}
for r in roles:
role = Role.query.filter_by(name=r).first() if role is None:
role = Role(name=r)
role.permissions = roles[r][0]
role.default = roles[r][1]
db.session.add(role)
db.session.commit()
请问roles字典中Permission.FOLLOW |Permission.COMMENT |
Permission.WRITE_ARTICLES, True
这里的｜代表什么意思啊 是表示换行吗？

bin = BINaries -----二进制

/dev = DEVices -----设备

/etc = ETCetera -----诸如此类

/lib = LIBrary 

/proc = PROCesses 

/sbin = Superuser BINaries 

/tmp = TeMPorary 

/usr = Unix Shared Resources 

/var = VARiable ? 

FIFO = First In, First Out 

GRUB = GRand Unified Bootloader 

IFS = Internal Field Seperators 

LILO = LInux LOader 

MySQL = My是最初作者女儿的名字，SQL = Structured Query Language 
PHP = Personal Home Page Tools = PHP Hypertext Preprocessor


PS = Prompt String 

Perl = "Pratical Extraction and Report Language" = "Pathologically Eclectic Rubbish Lister"

Python 得名于电视剧Monty Python's Flying Circus


Tcl = Tool Command Language 

Tk = ToolKit 

VT = Video Terminal 

YaST = Yet Another Setup Tool 

apache = "a patchy" server 

apt = Advanced Packaging Tool 

ar = archiver 

as = assembler 

awk = "Aho Weiberger and Kernighan" 三个作者的姓的第一个字母 

bash = Bourne Again SHell 

bc = Basic (Better) Calculator 

bg = BackGround 

biff = 作者Heidi Stettner在U.C.Berkely养的一条狗,喜欢对邮递员汪汪叫。 

cal = CALendar 

cat = CATenate 

cd = Change Directory 

chgrp = CHange GRouP 

chmod = CHange MODe 

chown = CHange OWNer 

chsh = CHange SHell 

cmp = compare 

cobra = Common Object Request Broker Architecture 

comm = common 

cp = CoPy 

cpio = CoPy In and Out 

cpp = C Pre Processor 

cron = Chronos 希腊文时间 

cups = Common Unix Printing System 

cvs = Current Version System 

daemon = Disk And Execution MONitor 

dc = Desk Calculator 

dd = Disk Dump 

df = Disk Free 

diff = DIFFerence 

dmesg = diagnostic message 

du = Disk Usage 

ed = editor 

egrep = Extended GREP 

elf = Extensible Linking Format 

elm = ELectronic Mail 

emacs = Editor MACroS 

eval = EVALuate 

ex = EXtended 

exec = EXECute 

fd = file descriptors 

fg = ForeGround 

fgrep = Fixed GREP 

fmt = format 

fsck = File System ChecK 

fstab = FileSystem TABle 

fvwm = F*** Virtual Window Manager 

gawk = GNU AWK 

gpg = GNU Privacy Guard 

groff = GNU troff 

hal = Hardware Abstraction Layer 

joe = Joe's Own Editor 

ksh = Korn SHell 

lame = Lame Ain't an MP3 Encoder 

lex = LEXical analyser 

lisp = LISt Processing = Lots of Irritating Superfluous Parentheses 

ln = LiNk 

lpr = Line PRint 

ls = list 

lsof = LiSt Open Files 

m4 = Macro processor Version 4 

man = MANual pages 

mawk = Mike Brennan's AWK 

mc = Midnight Commander 

mkfs = MaKe FileSystem 

mknod = MaKe NODe 

motd = Message of The Day 

mozilla = MOsaic GodZILLa 

mtab = Mount TABle 

mv = MoVe 

nano = Nano's ANOther editor 

nawk = New AWK 

nl = Number of Lines 

nm = names 

nohup = No HangUP 

nroff = New ROFF 

od = Octal Dump 

passwd = PASSWorD 

pg = pager 

pico = PIne's message COmposition editor 

pine = "Program for Internet News & Email" = "Pine is not Elm" 

ping = 拟声 又 = Packet InterNet Grouper 

pirntcap = PRINTer CAPability 

popd = POP Directory 

pr = pre 

printf = PRINT Formatted 

ps = Processes Status 

pty = pseudo tty 

pushd = PUSH Directory 

pwd = Print Working Directory 

rc = runcom = run command, rc还是plan9的shell 

rev = REVerse 

rm = ReMove 

rn = Read News 

roff = RunOFF 

rpm = RPM Package Manager = RedHat Package Manager 

rsh, rlogin, rvim中的r = Remote 

rxvt = ouR XVT 

seamoneky = 我 

sed = Stream EDitor 

seq = SEQuence 

shar = SHell ARchive 

slrn = S-Lang rn 

ssh = Secure SHell 

ssl = Secure Sockets Layer 

stty = Set TTY 

su = Substitute User 

svn = SubVersioN 

tar = Tape ARchive 

tcsh = TENEX C shell 

tee = T (T形水管接口) 

telnet = TEminaL over Network 

termcap = terminal capability 

terminfo = terminal information 

tex = τ?χνη的缩写，希腊文art 

tr = traslate 

troff = Typesetter new ROFF 

tsort = Topological SORT 

tty = TeleTypewriter 

twm = Tom's Window Manager 

tz = TimeZone 

udev = Userspace DEV 

ulimit = User's LIMIT 

umask = User's MASK 

uniq = UNIQue 

vi = VIsual = Very Inconvenient 

vim = Vi IMproved 

wall = write all 

wc = Word Count 

wine = WINE Is Not an Emulator 

xargs = eXtended ARGuments 

xdm = X Display Manager 

xlfd = X Logical Font Description 

xmms = X Multimedia System 

xrdb = X Resources DataBase 

xwd = X Window Dump 

yacc = yet another compiler compiler

$this 的含义表示什么，实例化后的具体对象！
我们一般是先声明一个类，然后用这个类去实例化对象！
但是，当我们在声明这个类的时候，想在类本身内部使用本类的属性或者方法。应该怎么表示呢？
例如：
我们声明一个User类！它只含有一个属性$name;
classname
{
public $_name;
}
现在我们给User类加个方法。使用getName()方法，输出$name属性的值吧!复制php内容到剪贴板
php代码:
class User
{
public $name;
function getName()
{
echo $this->name;
}
}
//如何使用呢？
$user1=new User();
$user1->name='张三';
$user1->getName();
$user2=new User();
$user2->name='李四';
$user2-getName();
怎么理解呢？
我上面创建了两个User对象。分别是$user1和$user2.
当我调用$user1->getName()的时候。上面User类中的代码echo $this->name ;就是相当于是echo $user1->name;
大概就是这个意思！
其实，你也不要去钻牛角尖。你只要知道那是一个用来表示类内部的属性和方法的代号就好了！越想越糊涂的！
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