开发 Tips（1）

1

git config core.autocrlf

git config --global core.autocrlf  false

list.sort(cmp=None, key=None, reverse=False)

my_list = ['3', '4', 'u', 9]
my_list.sort(reverse=True)
print my_list
['u', '4', '3', 9]

def takeSecond(elem):
    return elem[1]
mylist = [(2, 2), (3, 4), (42, 1), (41, 1), (1, 3)]
mylist.sort(key=takeSecond)
print mylist
[(42, 1), (41, 1), (2, 2), (1, 3), (3, 4)]

sorted(iterable, cmp=None, key=None, reverse=False)  

mylist = [5, 2, 3, 1, 4]
print sorted(mylist, reverse=True)
[5, 4, 3, 2, 1]

mylist = [('b', 2), ('a', 1), ('c', 3), ('d', 4)]
print sorted(mylist, cmp=lambda x, y: cmp(x[1], y[1]))
[('a', 1), ('b', 2), ('c', 3), ('d', 4)]

mylist = [('d', 2), ('a', 4), ('b', 3), ('c', 2)]
print sorted(mylist, key=lambda x: (x[1], x[0]))
[('c', 2), ('d', 2), ('b', 3), ('a', 4)]

[mysqld]
port=3306
basedir=C:\\tools\\mysql\\current
datadir=C:\\ProgramData\\MySQL\\data
skip-grant-tables 

"C:\tools\mysql\current\bin\mysqld"  --install MySQL --defaults-file="C:\tools\mysql\current\my.ini"

net start mysql

import pymysql 

pymysql.install_as_MySQLdb()

@"%SystemRoot%\System32\WindowsPowerShell\v1.0\powershell.exe" -NoProfile -InputFormat None -ExecutionPolicy Bypass -Command "iex ((New-Object System.Net.WebClient).DownloadString('https://chocolatey.org/install.ps1'))" && SET "PATH=%PATH%;%ALLUSERSPROFILE%\chocolatey\bin"

<?xml version="1.0" encoding="utf-8"?>
<packages >
  <package   />
  <package   />
  <package   />
  <package   />

  <package   />
  <package   />
  <package   />
  <package   />

  <package   />
  <package   />
  <package   />

  <package   />
  <package   />
  <package   />

  <package   />
  <package   />

  <package   />
  <package   />
  <package   />
  <package   />
</packages>

choco install packages.config -y