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CD-ROM CD-ROM stands for Compact Disc - Read-Only Memory. It is a type of CD made to hold data, as opposed to audio, which the CD was originally developed for. CD-ROM is used to distribution millions ... 阅读全文
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What is MPEG? MPEG stands for the Motion Picture Experts Group, part of the International Organization for Standardization (ISO) and International Electrotechnical Commission (IEC), charged with cre... 阅读全文
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DVD-Video Subset of DVD specs, even though normally term "DVD" refers to this particular format. DVD-Video is a standard developed by DVD Forum and specifies how video should be stored on optical D... 阅读全文
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What is AAC? AAC, Advanced Audio Coding, is a technique for compressing digital audio files. Officially part of the MPEG-4 standard, it is most widely used to create small digital audio files. The ... 阅读全文
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笔试时碰到的题目，回答如下： 假定三条边为a，b，c。 1.证明a，b，c为有效数字。 2.证明a，b，c可以构成三角形。 3.证明a，b，c构成的三角形为等腰三角形。 证明a，b，c为有效数字 Case 1： 输入空值 Case 2： 输入符号 Case 3： 输入字母 Case 4： 输入负数 Case 5： 输入0 Case 6： 输入长度大于指定长度的数 Case 7： 输入字母数字组... 阅读全文