straws

there is a hard problem about chinese encode every string contains some chinese word will become garbled "?" for example, character ID contains "風"、"要"、"閱"...etc those words("風"、"要"、"閱"...etc) will translate to "?" by parser I have know the reason that due to the word like "閱"'s code is "XXAC" and the "\"'s code is "AC" so,the parser will translate AC and the next word to escaping character, the rest code "XX" will be a unrecognized word , and it will be parsed to "?" How can I solve it? what is the coding rule? How to know the code of every chinese word? like this