正则数字、字母、汉字验证，必须同时存在2者

var reg_licencePlate = /^(?![0-9]+$)(?![a-zA-Z]+$)[0-9A-Za-z]{6,10}$|^(?![0-9]+$)(?![u4e00-u9fa5]+$)[0-9u4e00-u9fa5]{6,10}$|^(?![0-9]+$)(?![a-zA-Z]+$)(?![u4e00-u9fa5]+$)[0-9A-Za-zu4e00-u9fa5]{6,10}$/;