檢視记忆功能的原始碼

'''记忆功能'''指[[点钞机]]每次点数都保持在[[预置]]窗口记忆显示。<ref>[https://zhidao.baidu.com/question/1998215692788481827.html?fr=bks0000&word=%E8%AE%B0%E5%BF%86%E5%8A%9F%E8%83%BD 记忆功能简介]百度知道</ref>  
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