拼音输入法杳询函数: unsigned char code * py_ime(unsigned char input_py_val[]) input_py_val为已输入的拼音码字符串头指针， 反回值为中文的起始地址，当为0时，杳询失败 应用举例：-Pinyin input method is unable to exercise functions : unsigned char code py_ime* (unsign