export default function (value, maxLength) { let length = 0; for (let i = 0; i < value.length; i++) { const c = value.charCodeAt(i); if ((c >= 0x0001 && c <= 0x007e) || (0xff60 <= c && c <= 0xff9f)) { length++; } else { length += 2; } } if (length <= maxLength || maxLength <= 3) { return value; } return value.substring(0, maxLength - 3) + '...'; }