//十六进制转ASCII码
            hexCharCodeToStr(hexCharCodeStr) {
                var trimedStr = hexCharCodeStr.trim();
                var rawStr = trimedStr.substr(0, 2).toLowerCase() === "0x" ? trimedStr.substr(2) : trimedStr;
                var len = rawStr.length;
                if (len % 2 !== 0) {
                    this.showToast('erro1')
                    return "";
                }
                var curCharCode;
                var resultStr = [];
                for (var i = 0; i < len; i = i + 2) {
                    curCharCode = parseInt(rawStr.substr(i, 2), 16);
                    resultStr.push(String.fromCharCode(curCharCode));
                }
                return resultStr.join("");
            },

// 十进制转16进制字符串
            strToArr(str) {
                let arr = str.split('.')
                const hexadecimalArr = arr.map(item => {
                    let s = parseInt(item).toString(16).toUpperCase()
                    return s.length < 2 ? `0${s}` : s
                })
                return hexadecimalArr.join('')
            },

            

// 字符串转16进制
            asclltoNum(str) {
                for (let i = 0; i < str.length; i++) {
                    let charCode = str.charCodeAt(i);
                    this.hex += charCode.toString(16).toUpperCase()
                }
                console.log("hex", this.hex);
                return this.calcStrBytes(this.hex)
            },
            // 获取字节数
            calcStrBytes(str) {
                if (typeof str !== 'string') {
                    throw new TypeError('需要字符串');
                }
                // console.log(str.split('').reduce((res, x) => res + (x.codePointAt(0).toString(16).length / 2), 0))
                return str.split('').reduce((res, x) => res + (x.codePointAt(0).toString(16).length / 2), 0)
            },