大约有 18,000 项符合查询结果(耗时:0.0524秒) [XML]

https://www.tsingfun.com/it/da... 

如何查看Oracle用户的SQL执行历史记录? - 数据库(内核) - 清泛网 - 专注C/...

...v$sqlarea t order by t LAST_ACTIVE_TIME desc注意 :执行此语句等等一些相关的语句 必须具有DBA 的权限 虽然 select * from v$sqlarea t order by t.LAST_ACTIVE_TIME desc 注意 :执行此语句等等一些相关的语句 必须具有DBA 的权限 虽然这条语句很普通...
https://stackoverflow.com/ques... 

Efficiently test if a port is open on Linux?

... @AmanJain cat waits for EOF or Ctrl-C to quit. You'll need to adjust this for your protocol. BTW are you running this to a remote server? – Spencer Rathbun Mar 7 '12 at 21:57 ...
https://stackoverflow.com/ques... 

Keyboard shortcuts with jQuery

...s very good for key-combinations (especially those special keys like shift,ctrl,alt,...) but I'm having troubles with basic mapping 0-9 and a-z). – Martin Dec 19 '13 at 12:16 1 ...
https://stackoverflow.com/ques... 

How to add external library in IntelliJ IDEA?

... in red color which means that the library is not recognized. When I click Ctrl+B, I get a message "Cannot find declaration to go to". ...
https://www.tsingfun.com/it/tech/1324.html 

LINUX 磁盘掉电修复故障一列 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...磁盘柜。磁盘柜突然掉电, LINUX启动报磁盘错误在光标处输入系统的密码进入SHELL输入fsck -y dev sda3修复完成reboot 系统虚拟机环境,挂磁盘柜。磁盘柜突然掉电, LINUX启动报磁盘错误 在光标处输入系统的密码 进入SHELL ...
https://www.tsingfun.com/it/tech/1998.html 

Java 调用外部进程 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...百般无奈之下上网搜了搜,归结起来问题就处在异常流和输入流上。网上所列举的方法,或者首先读入异常流,再读入输入流,或者启不同的线程,分别读取异常流和输入流。 经过自己的实验,在jdk1.6.0和Windows XP SP3下测试的...
https://bbs.tsingfun.com/thread-1045-1-1.html 

提交作业 - App Inventor 2 中文网 - 清泛IT论坛,有思想、有深度

...17 21:27 编辑 第二课作业提交:相比于课上,增加了文本输入框,游玩时能够自行输入想要打出的文本。输入后,点击上方钮便可以令打字机打出,并且附带音效。文本打完后,再点击下方钮,就可以重新输入,重复游玩。...
https://bbs.tsingfun.com/thread-1845-1-1.html 

App Inventor 2 做个计算器怎手机运行后报错 - App应用开发 - 清泛IT社区,为创新赋能!

...定要对除数进行非零的判断,使用数学代码块=0 判断。当输入框没有输入内容时,数学运算会转成 0 处理,因此就会出现除零异常。要先用文本块是否为空进行判断,如果为空则提示用户输入内容。也可将文本框的属性 仅数字 ...
https://stackoverflow.com/ques... 

Increase font size chrome console

... If you just need a quick, temporary size bump you can press Ctrl + / - to zoom and Ctrl 0 to reset. share | improve this answer | follow | ...
https://stackoverflow.com/ques... 

How can I add a string to the end of each line in Vim?

... the end of each of these lines: On a character in the first line, press Ctrl-V (or Ctrl-Q if Ctrl-V is paste). Press jj to extend the visual block over three lines. Press $ to extend the visual block to the end of each line. Press A then space then type Hello world. + then Esc. The result is: ...