/**
 * Created by jiachenpan on 17/3/8.
 */
// 获取随机字符串
export function getRandomString(length, chars) {
    const len = length || 32;
    const charStr = chars || '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';
    let result = '';
    for (let i = len; i > 0; --i) { result += charStr[Math.floor(Math.random() * charStr.length)]; }
    return result;
}