//只允许输入CTN开头并且CTN后面只能跟数字
export const boxCodeCtn = (target: any) => {
    console.log(target.length);
    return target.replace(/[^C|c|T|t|N|n]/g, "");
    if ((target.length === 1 && target !== "c") || target !== "C") {
        console.log("123232323");
        return "";
    }
};