Matplotlib: plotting transparent histogram with non transparent edge

巧了我就是萌 提交于 2019-12-02 19:08:29
I am plotting a histogram, and I have three datasets which I want to plot together, each one with different colours and linetype (dashed, dotted, etc). I am also giving some transparency, in order to see the overlapping bars. The point is that I would like the edge of each bar not to become

线程池原理及C语言实现线程池

生来就可爱ヽ(ⅴ<●) 提交于 2019-12-02 19:08:29
备注:该线程池源码参考自传直播客培训视频配套资料; 源码: https://pan.baidu.com/s/1zWuoE3q0KT5TUjmPKTb1lw 密码:pp42 引言:线程池是一种多线程处理形式,大多用于高并发服务器上,它能合理有效的利用高并发服务器上的线程资源; 在Unix网络编程中,线程与进程用于处理各项分支子功能,我们通常的操作是:接收消息 ==> 消息分类 ==> 线程创建 ==> 传递消息到子线程 ==> 线程分离 ==> 在子线程中执行任务 ==> 任务结束退出; 对大多数小型局域网的通信来说,上述方法足够满足需求;但当我们的通信范围扩大到广域网或大型局域网通信中时

Swift: download image from Internet and cache them doesn't work properly. need suggestions

…衆ロ難τιáo~ 提交于 2019-12-02 19:08:29
问题 I am new to swift, and I am building an App that download images from the Internet and display in a UICollectionView, I can achieve this function successfully, however, it seems like overtime you scroll the screen, it downloaded the images again and again, which may causes a lot of data of the

how to deal with repeated letters in a javascript hangman game

我只是一个虾纸丫 提交于 2019-12-02 19:08:28
问题 I am a beginner to html, css and javascript, and I am creating this hangman game using these, which works fine for words with single instances of each letter but it seems to run into problems when a letter occurs repeatedly in the same word. I have created a function to check the instances of

cocos eclipse android 打包笔记

人走茶凉 提交于 2019-12-02 19:08:27
java.lang.NullPointerException http://forum.cocos.com/t/eclipse-java-lang-nullpointerexception/13690 这个破问题折腾了我两天,太坑爹了。把时间都浪费在整环境上了,什么玩意。 问题描述:python cocos.py新建一个项目HelloWorld,执行项目下面proj.android下的build_native.py编译好工程后导入eclipse可以正常运行。 但是,,,一旦退出eclipse,,再次打开,妹的,神奇的错误出现了!报什么java空指针,cdt builder error