swift : Expression was too complex to be solved in reasonable time; consider breaking the expression into distinct sub-expressions

Question

我是 Swift 编程语言的新手。我在解析 json 时有疑问。我对json中参数的定义如下

let params  = [
   ["name":"action", "value":"pay"],
   [
      "name":"cartJsonData",
      "value":[
         "total":1,
         "rows":[
            [
               "quantity":"1000",
               "title":"Donation for SMSF India - General Fund",
               "price":"1",
               "itemId":"DN001",
               "cost":"1000",
               "currency":"INR"
            ]
         ]
      ]
   ],
   ["name":"center", "value":"Chennai"],
   ["name":"flatNumber", "value":"503"],
   ["name":"panNumber", "value":""],
   ["name":"payWith", "value":"CreditCard"],
   ["name":"reminderFrequency", "value":"Monthly"],
   ["name":"shipToAddr1", "value":"null"],
   ["name":"shipToAddr2", "value":"null"],
   ["name":"shipToCity","value":"null"],
   ["name":"shipToCountryName", "value":"India"],
   ["name":"shipToEmail",  "value":"raoa@hotmail.com"],
   ["name":"shipToFirstName","value":"Barnie"],
   ["name":"shipToLastName","value":"Killian"],
   ["name":"shipToPhone", "value":"8754470650"], 
   ["name":"shipToState", "value":"Telangana"], 
   ["name":"shipToZip", "value":"500001"], 
   ["name":"userId", "value":"test_id"],
   ["name":"shipToCountry", "value":"IN"]
]

我在这方面遇到了上述错误。有人可以解释一下吗？

Answer 1

以下是该问题的答案。我对声明做了一些修改。

let params : [[String : AnyObject]] = [["name": "action", "value": "pay"],["name": "cartJsonData", "value": "{\"总计\": 1,\"行\":[{\"数量\":\"(金额)\",\"标题\":\"向 SMSF 印度捐款 - 普通基金\",\"价格\":\"1\",\"itemId\":\"DN001\",\"成本\":\"(金额)\",\"货币\":\"INR\"}]}"] ，[“名称”:“中心”，“值”:“金奈”]，[“名称”:“平编号”，“值”:“503”]，[“名称”:“panNumber”，“值”: "(pan)"], ["name": "payWith"], ["name": "reminderFrequency","value": "每月"], ["name": "shipToAddr1"], ["name": "shipToAddr2"], ["name": "shipToCity"], ["name": "shipToCountryName", "value": "印度"], ["name": "shipToEmail", "value": "(电子邮件! )"], ["名称": "shipToFirstName", "值": "(名称!)"], ["名称": "shipToLastName"], ["名称": "shipToPhone", "值": "(移动!)"], ["名称": "shipToState"], ["名称": "shipToZip"], ["名称": "userId", "值": "(userid)"], ["名称": "shipToCountry", "value": "IN"]]