//添加时:string ActionCode =""; list = new ();//勾选("01");//勾选("02");...//勾选("0N");for(int i = 0;i<;i++){ if(i < ()) { ActionCode += "_"; } ActionCode += list[i].ToString();}//此处即得到想要的字符串ActionCode //修改读取时:string ActionCode ="01_02_03_04";string[] list = ('_'); = list[0]; = list[1]; = list[2]; = list[3];