The processing of each file record once, for the purpose of reducing the number of strings of sequenced records and increasing the number of sequenced records per string.; 在排序過(guò)程中,為了減少已排序記錄串的數(shù)量,增加每串中已排序記錄的數(shù)量, 而對(duì)每個(gè)文件記錄所進(jìn)行的一次處理。