定价两次-同一事件在确认前再次发生 pragma solidity ^; contract TransactionOrdering { uint256 price; address owner; event Purchase(address _buyer, uint256 _price); event PriceChange(address _owner, uint256 _price); modifier ownerOnly() { require(msg.sender == owner);…

There are some Common Bugs in C Programming. Most of the contents are directly from or modified from Prof. Liu Pangfeng's blog. Most credits should go to him. For all the following problems, answer the output message of the code, unless they are spec…

Time Limit: 10000MS   Memory Limit: 64000K Total Submissions: 5090   Accepted: 2529 Case Time Limit: 2000MS   Special Judge Description Ivan is fond of collecting. Unlike other people who collect post stamps, coins or other material stuff, he collect…

题目描述 Ivan is fond of collecting. Unlike other people who collect post stamps, coins or other material stuff, he collects software bugs. When Ivan gets a new program, he classifies all possible bugs into n categories. Each day he discovers exactly one…

> Robomongo https://robomongo.org > 日常使用频率最高的客户端 存在BUG: 在 db.getCollection('xzq').find({"_id" : ObjectId("57ecd5a7228c821ab8655cf8")}) 查找后,GUI下再更改此条数据,有一定几率报BUG,如下图…

EO :oracle.apps.fnd.framework.server.OAEntityImpl VO:oracle.apps.fnd.framework.server.OAViewRowImpl 1.准备插入的视图VO 此VO 只是插入行,不从数据库中查询.则此时必须 setMaxFetchSize(0)进行初始化. AM 中的逻辑代码: //检查并确保 VO 中没有行,在插入之前进行初始化 if (vo.getFetchedRowCount() == 0) { vo.setMaxFetch…

1.INSERT 调用PL/SQL 去insert的时候,没有使用super(),此时应当自己创建callable statement: 调用checkErrors()方法在执行 callable statement 处理异常后 protected void insertRow() {    try    {      String insertStmt = "BEGIN INSERT_RECORD( " +                                   &quo…

不能说所有的bug都是纸老虎,但往往那种看似很奇葩的bug,导致的原因确实很简单,烦了你一段时间,找到真相又让你忍不住一笑.什么是奇葩的bug呢.我的定义是:代码逻辑都一样,但在A处是好的,到了B处就不行或者同类的ABC都是好的,D却不行了的bug.而最终,问题确实不在代码逻辑上面,往往是配置.权限或者业务逻辑之外的地方. 本地都是ok的,服务器还是不行,怪我咯 case1:本地工程改好,推倒服务器上,但一会儿,测试妹妹又叫了,“还是不行,你再看看”.顿时眉头一皱,怎么可能,自己又run一遍,妥…

[POJ2096]Collecting Bugs Description Ivan is fond of collecting. Unlike other people who collect post stamps, coins or other material stuff, he collects software bugs. When Ivan gets a new program, he classifies all possible bugs into n categories. E…

说明:本文档兼容性测试基础环境为:windows系统:IE6-IE10, Firefox6.0, Chrome13.0, Safari5.1, Opera11.51 Bugs及解决方案列表(以下实例默认运行环境都为Standard mode): 如何在IE6及更早浏览器中定义小高度的容器? 方法: #test{overflow:hidden;height:1px;font-size:0;line-height:0;} IE6及更早浏览器之所以无法直接定义较小高度的容器是因为默认会有行高 如何解决…