大约有 30,000 项符合查询结果（耗时：0.0448秒） [XML]
How to get the first non-null value in Java?
...easons that i mentioned above is that an array allocation will happen each time you invoke the var arg version of the method. this could be wasteful for hand-fulls of items, which i suspect will be common usage.
– les2
May 4 '10 at 18:54
...
Error 1046 No database Selected, how to resolve?
...nch (I'm in v5.2.47) if you're getting this error. Only need to run it one time per query tab - all subsequent executions on that tab seem to use the database correctly.
– DACrosby
Nov 5 '13 at 3:23
...
Recursive Lock (Mutex) vs Non-Recursive Lock (Mutex)
... has to keep track of the thread who actually obtained the mutex the first time around so that it can detect the difference between recursion vs. a different thread that should block instead. As another answer pointed out, there is a question of the additional overhead of this both in terms of memor...
Local file access with JavaScript
...t this dramatically extends the reach of web apps and is not going away anytime soon.
– bbsimonbb
Dec 2 '15 at 9:42
...
How to resolve git stash conflict without commit?
...sually solves all or majority of conflicts automatically itself. It's huge time-saver!
share
|
improve this answer
|
follow
|
...
`Apache` `localhost/~username/` not working
...
For the rare person who spent as much time as I did wondering why none of the other resources or posts worked... this is for you. I spent 6 hours (at work) devoted entirely towards getting this damn permission issue solved and here was my solution. PLEASE NOTE: ...
Mark parameters as NOT nullable in C#/.NET?
...l from being passed in C#/.NET? Ideally this would also check at compile time to make sure the literal null isn't being used anywhere for it and at run-time throw ArgumentNullException .
...
Sending Arguments To Background Worker?
... this (like I tried to do), you have to create a new backgroundworker each time (in your example you did). Else you will have an issue like I did. My backgroundworker would keep repeating the previous runs. If run once it was fine. 2 times it repeated last run and current run. 3rd run would repeat l...
Message Queue vs. Web Services? [closed]
... Apache so that requests come 1 after 1, instead of all coming at the same time. In this case, Clients (Browsers) are connected to MQ instead of Apache, am i right? But then, do Browsers keep the HTTP connection open and keep waiting for Apache to respond? Please help me understand a bit on this. Ap...
Managing CSS Explosion
...ok of web sites and/or apps using pure CSS, which is a great advantage and time-saver.
If possible, give every page's body a unique class: <body class='contactpage'> this makes it very easy to add page-specific tweaks to the style sheet:
body.contactpage div.container ul.mainmenu li { col...