mapper信息详情
n.映射；制图人；字体映射程序
mineralogy mapper───矿物学制图器
azimuth mapper───方位映射器
commute mapper───通勤地图
cruice mapper───克鲁斯档案
shibboleth request mapper───shibboleth请求映射器
There is an object relational mapper out there that is a hidden gem.───那里有一个对象关系映射程序，它是一块隐藏的宝石。
Thus, I write a new Mapper class.───因此，我编写了一个新的 Mapper 类。
Then, choose the persistence mapper component.───然后，选择持久性映射程序组件。
Django comes with its own object-relational mapper (ORM) library that supports dynamic database access through a Python object interface.───Django提供了自己的对象关系型数据映射组件（object-relationalmapper，ORM）库，它可以通过Python对象接口支持动态数据库访问。
The mapper script is shown in Listing 4 (with some comments and white space to give it a bit more size).───如清单4中所示的mapper脚本（通过一些注释和空白区域可给与其大一点的大小）。
QA Mapper enables the creation of project specific and secure test data sets which can be easily maintained through a web-based interface.───QAMapper能够创建可以通过基于web的接口简单地维护的具体工程的且安全的测试数据集。
SQLObject is the object-relational mapper (ORM) library that allows you to develop database-persistent Python objects.───SQLObject是对象关系映射器（ORM）库，它让我们可以开发数据库持久的Python对象。
The mapper function effectively strips the IP address out of each line and returns it with a value of 1.───mapper函数提取出每行中的IP地址并返回它和值1。
Otherwise, you create a new entry in the hash for the word, and then load the count (which should be 1 from the mapper process).───否则，您需要在该单词的hash中创建新的条目，然后加载计数（应该是来自mapper过程的1）。