SwiftyJSON的使用

• 1.拷贝SwiftyJSON.swift到项目。
• 2.使用

        let jsonStr = "[{\"name\": \"name swift\", \"age\": 100, \"phones\": [{\"name\": \"公司\",\"number\": \"123456\"}, {\"name\": \"家庭\",\"number\": \"001\"}]}, {\"name\": \"big boss\",\"age\": 1,\"phones\": [{ \"name\": \"公司\",\"number\": \"111111\"}]}]"
        print(jsonStr)
        
        let jsonData = jsonStr.data(using: .utf8)
        let arrData = JSON(data:jsonData!)
        print(arrData)
        print(arrData[0])
        print(arrData[0]["name"])
        let name2:String = arrData[1]["name"].string!
        print(name2)

        // 数字变量的用法
        let iRandom:Int = Int(1)!
        let path: [JSONSubscriptType] = [iRandom,"name"]
        let name = arrData[path].string

• 3.高级使用JSON的 .description

            // 删除一个成员
            let jdata = jsonStr.data(using: .utf8)
            var arrData = JSON(data:jdata!)
//            print(arrData.description)
            arrData[indexPath.row] = ""
            var newStrMember = "["
            for i in 0..<arrData.count {
                let strOneJson:String = arrData[i].description
                if strOneJson != "" {
                    if i == arrData.count - 1 {
                        newStrMember = newStrMember + arrData[i].description
                    } else {
                        newStrMember = newStrMember + arrData[i].description + ","
                    }
                }
            }
            newStrMember += "]"

-4 path

//Getting a string using a path to the element
let path: [JSONSubscriptType] = [1,"list",2,"name"]
let name = json[path].string
//Just the same
let name = json[1]["list"][2]["name"].string
//Alternatively
let name = json[1,"list",2,"name"].string

//With a custom way
let keys:[SubscriptType] = [1,"list",2,"name"]
let name = json[keys].string