假如在GameLayer.h中有Card类型的变量,那么在Card.h文件中,不要有GameLayer.h的导入.这样子会导致编译器找不到对Card类型的定义而导致报错.但是,在Card.cpp中可以有对GameLayer类型的引用. MainMenu是保留的类名.…

使用python requests 框架包访问https://itunes.apple.com 页面是遇到 SSLError: hostname 'itunes.apple.com' doesn't match either of 错误, 但本地开发时没报错,而是在线上报错,python版本是2.7.3,后来gg到是因为版本问题,安装好pyOpenSSL .ndg-httpsclient.pyasn1 即可,发现确实可行. These errors occur when SSL certific…

转:http://www.linux-mtd.infradead.org/faq/ubifs.html UBIFS FAQ and HOWTO Table of contents How do I enable UBIFS? How do I mount UBIFS? How do I create an UBIFS image? May an empty UBI volume be mounted? What is the purpose of -c (--max-leb-cnt) mkfs.…

http://blog.csdn.net/seaker_/article/details/55107598 FAQ: adb server version (36) doesn't match this client (39); killing...error: could not install *smartsocket* listener: cannot bind to 127.0.0.1:65508: 通常每个套接字地址(协议/网络地址/端口) 只允许使用一次. (10048) Reslo…

Frequently Asked Questions (FAQ) Origins 起源 What is the purpose of the project? What is the history of the project? What's the origin of the gopher mascot? Why did you create a new language? What are Go's ancestors? What are the guiding principles in…

comp.lang.javascript FAQ Version 32.2, Updated 2010-10-08, by Garrett Smith FAQ Notes 1 Meta-FAQ meta-questions 1.1 Which newsgroups deal with javascript? 1.2 What questions are on-topic for comp.lang.javascript? 1.3 What should I do before posting t…

Elasticsearch 5.0 关于term query和match query的认识 一.基本情况 前言:term query和match query牵扯的东西比较多,例如分词器.mapping.倒排索引等.我结合官方文档中的一个实例,谈谈自己对此处的理解 string类型在es5.*分为text和keyword.text是要被分词的,整个字符串根据一定规则分解成一个个小写的term,keyword类似es2.3中not_analyzed的情况. string数据put到elasticse…

前言 之前系列中在查询计划中一直出现Stream Aggregate,当时也只是做了基本了解,对于查询计划中出现的操作,我们都需要去详细研究下,只有这样才能对查询计划执行的每一步操作都了如指掌,所以才有了本文的出现,简短的内容,深入的理解,Always to review the basics. Stream Aggregate Stream Aggregate通过单列或者多列来对行进行分组并且对指定的查询来计算聚合表达式.最常见的聚合类型如SUM.COUNT.SUM.AVG.MIN.MAX,当…

从别的地方导入一个项目的时候,经常会遇到eclipse/Myeclipse报Description  Resource Path Location Type Java compiler level does not match the version of the installed Java project facet.出现这个问题的原因是因为,eclipse/myeclipse的jdk编译版本与出现问题的项目JDK编译版本不一致所导致! 1.先设置好jdk,需要确定 项目,eclipse/m…

今天研究钉钉的开放平台,结果一个demo整了半天,这帮助系统写的也很难懂.遇到两个问题: 1.首先是执行demo时报unable to find valid certification path to requested target,错误信息如下: request url=https://oapi.dingtalk.com/gettoken?corpid=...略...&corpsecret=...略..., exception, msg=sun.security.validator.Vali…