汉字转化为拼音，其实现的原理就是先将汉字转化成为内码，然后通过内码和拼音的对照来查找 1.添加索引 2.遍历数组-Chinese characters into Pinyin, the realization of the principle is first translated into Chinese characters within the code within the code and then to find a phonetic contrast. Add an i