码迷,mamicode.com
首页 >  
搜索关键字:level    ( 6507个结果
Use two picogate devices for bidirectional level-shifting
In new mixed-voltage systems, it is often necessary to level-shift a control signal from a high level to a low level. An open-drain device, such as th...
分类:其他好文   时间:2014-11-28 14:16:23    阅读次数:206
Circuit translates I2C voltages
This Design Idea explores level-shifting an I2C bus from 5V/ground (positive domain) to ground/–5V (negative domain). In multisupply systems, you some...
分类:其他好文   时间:2014-11-28 14:15:37    阅读次数:226
Circuit level-shifts ac signals
AC signals can emanate from many sources, and many of these sources are incompatible with the most popular interface voltages, such as TTL. A temptati...
分类:其他好文   时间:2014-11-28 14:13:40    阅读次数:190
LeetCode[Tree]: Binary Tree Level Order Traversal
Given a binary tree, return the level order traversal of its nodes' values. (ie, from left to right, level by level). 这个题目比较简单,借助容器queue即可完成二叉树的层序遍历。我的C++实现代码如下: vector > levelOrder(TreeNode *...
分类:其他好文   时间:2014-11-28 10:22:22    阅读次数:206
LeetCode[Tree]: Binary Tree Level Order Traversal II
Given a binary tree, return the bottom-up level order traversal of its nodes' values. (ie, from left to right, level by level from leaf to root). 这个简单的问题可以这样解决:利用LeetCode[Tree]: Binary Tree Level...
分类:其他好文   时间:2014-11-28 10:15:15    阅读次数:227
zabbix 自定义LLD
线上部分实时job是用storm开发的,为了监控数据的延迟,在storm处理日志的时候会把日志的时间插入到redis中,然后通过zabbix做延迟的监控。由于经常有新的job上线,手动配置监控项就变得比较麻烦,为了解放生产力,还是需要搞成自动化。之前添加网卡和分区监控的时候用了LLD的..
分类:其他好文   时间:2014-11-28 06:26:22    阅读次数:298
leetcode Binary Tree Level Order Traversal
给定一个数,广度优先输出记录。例如:Given binary tree{3,9,20,#,#,15,7}, 3 / \ 9 20 / \ 15 7return its level order traversal as:[ [3], [9,20], [15,7]]思...
分类:其他好文   时间:2014-11-28 01:04:56    阅读次数:250
Using a Virtex Device to Drive 5V CMOS-Level Signals
Must tri-state outputs and use an external resistor to pull up to 5VTo drive 5V CMOS-level inputs, a pull-up resistor must be applied to the 5V Virtex...
分类:其他好文   时间:2014-11-27 23:24:05    阅读次数:243
java web 日志详细
第一步:首先建立一个WEB工程,去log4j官网下log4j的JAR包导入到工程的lib目录下第二步:在src目录下建一个log4j.properties 文件,文件命名可以由自己,只是记加载时候和这里名字一致就行;log4j.properties 里边的内容如下:### set log level...
分类:编程语言   时间:2014-11-27 23:23:58    阅读次数:381
android switch(String)错误:Cannot switch on a value of type String for source level below 1.7
switch语句的判断条件可以接受int,byte,char,short,不能接受其他类型只有JDK版本1.7以上才可以支持String设置如下可解决问题:(若没有JDK1.7版,可下载一下安装)菜单选项--》project->properties->java compiler->compiler ...
分类:移动开发   时间:2014-11-27 20:25:37    阅读次数:350
© 2014 mamicode.com 版权所有  联系我们:gaon5@hotmail.com
迷上了代码!