原文地址:ArcGIS API For JavaScript官方文档(二十)之图形和要素图层——①Graphics概述 ArcGIS JavaScript API允许在地图上绘制graphic(图形).graphic可以由用户作为标记或输入绘制,也可以由应用程序根据任务绘制.例如,应用程序可能会将查询结果作为graphics添加到地图. 您可以为您的ArcGIS JavaScript API地图创建和添加一个或多个graphic图层.一个GraphcsLayer包含一个Graphic对象的数组,…
WHY DO I NEED IT? Siege was written for both web developers and web systems administrators. siege是为了web开发者和网络系统管理员而诞生的. It allows those individuals to test their programs and their systems under duress. 它允许这些人去测试他们的程序以及他们的系统在受到威迫下. As a web professio…
WHAT IS siege? Siege is an open source regression test and benchmark utility. Siege是一款开源回归测试和基准测试工具. It can stress test a single URL with a user defined number of simulated users, or it can read many URLs into memory and stress them simultaneously. 它…
接前一篇 Spring Framework 官方文档学习(四)之Validation.Data Binding.Type Conversion(一) 本篇主要内容:Spring Type Conversion(ConversionService).Spring Field Formatting.globle date & time format.Spring Validation. 本篇上承自前一篇,建议先看前一篇. 4.Spring Type Conversion (Spring类型转换) 上…
基础 // 判断值是否是指定数据类型 var result = hui.isTargetType("百签软件", "string"); //=>true var result = hui.isTargetType(123, "number"); // =>true var result = hui.isTargetType("false", "boolean"); // =>false /…