Combining multiple field names into one variable for printing allows you to see the actual name and the nicknames with one search.
将多个字段名组合成一个变量进行打印将允许您通过一次搜索查看实际名称和昵称。
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Other instances in which this pattern is useful include logging and printing, such as when you want only one instance of a class to access and control one particular printer at a time.
After you have typed one line of text on a typewriter, you have to manually return the printing carriage to the left margin position and manually feed the paper up one line.