IQueryFilter是进行查询选择时经常用到的接口,它可以帮助用户过滤不需要的值或者选择适当的要素。 IQueryFilter.whereclause属性允许用户设定过滤表达式限定返回的要素。举个例子,我们可以使用下面的表达式来选取面积大于1500平方米的多边形: "Area" >1500. 这种表达式实质上是一种SQL查询。其查询语法视乎用户正在使用
相似问题 I hate it when people make fun with me,though I don't mind it if they tease me.翻译 英语翻译 I hate people.是主谓宾句式吗? I hate people who don't help others when they are in trouble.翻译 I hate people lie to me!求翻译 特别推荐 二维码...
User Convenience: Users often watch videos in intervals, especially when watching long-form content like movies or series. Without the resume feature, we are forced to manually scroll through the video to find the exact point where we left off. This can be b...
1. What is Stonehenge? 2. Where is Stonehenge? 3. When and why do people like to go to see the Stonehenge? 4. What is Stonehenge used for (5种观点)? 5. Who built it? 6. How was it built? 7. What do you think of it?