generateRandomID() {const characters = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';const idLength = 30; // 字符串长度 这里生成30位的let randomID = '';for (let i = 0; i < idLength; i++) {const randomIndex = Math.floor(Math.random() * characters.length);randomID += characters.charAt(randomIndex);}return randomID;},

控制台打印出来：