头歌Educoder-重复课时答案

function mainJs(a) {
	//请在此处编写代码
	/********** Begin **********/
   var pattern1 = /\?{1,}/;
    var pattern2 = /\+{3}/
     var pattern3 = /(\{|\}){1,2}/
     var pattern4 = /\\?/
	/********** End **********/
    return pattern1.test(a).toString()+","+pattern2.test(a).toString()+","+pattern3.test(a).toString()+","+pattern4.test(a).toString();
}

麻烦点点关注