js正则包含三位

var reg = new RegExp("^(?![A-Za-z]+$)(?![A-Z\d]+$)(?![A-Z_\W]+$)(?![a-z\d]+$)(?![a-z_\W]+$)(?![\d_\W]+$)^[a-zA-Z0-9!#*_]{6,30}$");