[i][■][ｌ]这三个音素到底应归为几个音位，学术界尚无定论。传统的划分音位的“互补原则”、“语音相似原则”和“历史原则”本身存在着局限性，无法有效地处理[i][■][ｌ]的音位归纳问题。运用使用原则和实际原则可以很好地解决这个问题。根据实用原则和实际原则，应将[i][■][ｌ]归为三个音位。 [i] [■] [l] The three phonemes should be classified as a few phonemes, the academic community is not conclusive. The traditional “principle of complementarity”, “phonetic similarity principle” and “principle of history” of dividing phonemes have their own limitations and can not effectively deal with the phonemic inductive problem of [i] [■] [l]. The use of principles of use and the actual principles can be a good solution to this problem. According to practical principles and practical principles, [i] [■] [l] should be classified into three phonemes.