原创 初學java整理
extends與implements的區別： extends是繼承父類，只要那個類不是聲明爲final或者那個類定義爲abstract的就能繼承，JAVA中不支持多重繼承，但是可以用接口來實現，這樣就用到了implements，繼承只能繼
2020-06-27 08:10:51
原创 SQL遇到錯誤整理
The credentials you provided for the SQL Server Agent service are invalid. To continue, provide a valid account and pas
2020-06-27 08:10:51
2
原创 contextlib
>>> import contextlib >>> @contextlib.contextmanager ... def make_context(): ... print 'enter' ... try: ...
2020-06-27 08:10:51
原创 anaconda使用整理
# 創建一個名爲python34的環境，指定Python版本是3.4（不用管是3.4.x，conda會爲我們自動尋找3.4.x中的最新版本） conda create--name python34python=3.4 # 安裝好
2020-06-27 08:10:51
原创 textwrap
1.dedent Remove any common leading whitespace from every line in text. Note that tabs and spaces are both treated as wh
2020-06-27 08:10:51
原创 set and frozenset
>>> x = set("A Python") >>> x set(['A', ' ', 'h', 'o', 'n', 'P', 't', 'y']) Sets are implemented in a way, which doesn'
2020-02-21 01:43:55
原创 dictionary
>>> a = {"1":"WuWei"} >>> name = a.pop('2', []) >>> name [] >>> name = a.pop('2') Traceback (most recent call last):
2020-02-21 01:43:55
原创 P4python sync code from perforce
P4WORKSPACE = "wsx" P4PATH = "/home/s/Perforce/" P4PORT = "perforce-xxx:1800" def _sync_packages(view_common_path): """
2020-02-21 01:43:55
26
原创 apps
keep apps small and simpleapps can be reused between projects 點贊 收藏 分享 文章舉報 xiaoxinyu316
2020-02-21 01:43:55
原创 RESTful API 設計最佳實踐
來源：http://www.oschina.net/translate/best-practices-for-a-pragmatic-restful-api 數據模型已經穩定，接下來你可能需要爲web（網站）應用創建一個公開的AP
2020-02-21 01:43:55
原创 subprocess
import subprocess _VERBOSE = True def run_cmd(cmd): if _VERBOSE: print cmd process = subprocess.Popen(
2020-02-21 01:43:55
原创 That darn "libtoolize: AC_CONFIG_MACRO_DIR([m4]) conflicts with ACLOCAL_AMFLAGS=-I m4" error
Is caused by using CRLFs in Makefile.am. "m4<CR>" != "m4" and thus the lib
2020-02-21 01:43:55
原创 Jenkins使用整理
In the Global Security, I didn't have a TCP port for JNLP agents enabled, which automatically disables the line "Launch
2018-12-24 02:02:23