arrays - 字符串快速追加到数组

Question

我是 swift 编程的新手

选择弹出菜单后调用此函数

   func didSelectData(_ result: String){

    self.attendanceInfo.removeAll()
        if(result == "All Student"){
            self.attendanceInfo = self.attendanceInfoDupilicate
        }
        else if(result == "Present Student" ){
            self.attendanceInfo.removeAll()
            let itemsarray = self.attendanceInfoDupilicate
            for AttendanceInfo in itemsarray {
                if(AttendanceInfo.attendance.range(of: "PRESENT", options: .caseInsensitive) != nil){
                    self.attendanceInfo.append(AttendanceInfo)
                }
            }
        } else{
            self.attendanceInfo.removeAll()
            let itemsarray = self.attendanceInfoDupilicate
            for AttendanceInfo in itemsarray {
                if(AttendanceInfo.attendance.range(of: "ABSENT", options: .caseInsensitive) != nil){
                    self.attendanceInfo.append(AttendanceInfo)
===========>.  I have to append the  attendance = ""; to AttendanceInfo  
                } 
            }
        }
        self.TableView.reloadData()
       }

服务调用后Json数据为

我正在显示 出勤 = 现在 出勤 = 缺席

但是如何追加

的json数据

出勤 = ""; didSelectData 的功能

请帮帮我

Answer 1

尝试

if (AttendanceInfo.attendance.range(of: "ABSENT", options: .caseInsensitive) != nil) || AttendanceInfo.attendance.isEmpty {

}