1、所谓“只读文件”(简称为ROM),表示这个文档只能打开来观看,不能修改也不能储存。2、有些重要的档案会设定成只读状态,免得一不小心修改这些文档的内容,除非解除只读的状态,不然这些文档是不能修改的。[详细]
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