文件名称:CH7_3
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查找过程：将表分成几块，块内无序，块间有序；先确定待查记录所在块，再在块内查找-Search process: The table is divided into a few, within the block of disorder, inter-block and orderly Record of unknown origin to determine where the first block, then at block within the search
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CH7_3.C