Json格式 及編寫處理類

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JSON標準格式

JSON教程

 

以下是一組json樣本：

{"HeWeather6":[{"basic":{"cid":"CN101270107","location":"郫都","parent_city":"成都","admin_area":"四川","cnty":"中國","lat":"30.80875206","lon":"103.88784027","tz":"+8.00"},"update":{"loc":"2018-08-22 07:45","utc":"2018-08-21 23:45"},"status":"ok","now":{"cloud":"50","cond_code":"104","cond_txt":"陰","fl":"24","hum":"95","pcpn":"0.0","pres":"1007","tmp":"22","vis":"30","wind_deg":"171","wind_dir":"南風","wind_sc":"1","wind_spd":"4"},"daily_forecast":[{"cond_code_d":"300","cond_code_n":"101","cond_txt_d":"陣雨","cond_txt_n":"多雲","date":"2018-08-22","hum":"74","mr":"16:55","ms":"02:42","pcpn":"5.0","pop":"80","pres":"1005","sr":"06:35","ss":"19:38","tmp_max":"31","tmp_min":"21","uv_index":"6","vis":"14","wind_deg":"-1","wind_dir":"無持續風向","wind_sc":"1-2","wind_spd":"7"},{"cond_code_d":"101","cond_code_n":"101","cond_txt_d":"多雲","cond_txt_n":"多雲","date":"2018-08-23","hum":"64","mr":"17:42","ms":"03:31","pcpn":"5.0","pop":"80","pres":"1006","sr":"06:36","ss":"19:36","tmp_max":"33","tmp_min":"22","uv_index":"6","vis":"19","wind_deg":"-1","wind_dir":"無持續風向","wind_sc":"1-2","wind_spd":"11"},{"cond_code_d":"101","cond_code_n":"305","cond_txt_d":"多雲","cond_txt_n":"小雨","date":"2018-08-24","hum":"76","mr":"18:24","ms":"04:22","pcpn":"5.0","pop":"79","pres":"1005","sr":"06:36","ss":"19:35","tmp_max":"32","tmp_min":"23","uv_index":"3","vis":"18","wind_deg":"-1","wind_dir":"無持續風向","wind_sc":"1-2","wind_spd":"7"}],"lifestyle":[{"type":"comf","brf":"較不舒適","txt":"白天天氣多雲，同時會感到有些熱，不很舒適。"},{"type":"drsg","brf":"炎熱","txt":"天氣炎熱，建議著短衫、短裙、短褲、薄型T恤衫等清涼夏季服裝。"},{"type":"flu","brf":"少發","txt":"各項氣象條件適宜，發生感冒機率較低。但請避免長期處於空調房間中，以防感冒。"},{"type":"sport","brf":"較適宜","txt":"天氣較好，較適宜進行各種運動，但因天氣熱，請適當減少運動時間，降低運動強度。"},{"type":"trav","brf":"較適宜","txt":"天氣較好，溫度較高，天氣較熱，但有微風相伴，還是比較適宜旅遊的，不過外出時要注意防暑防晒哦！"},{"type":"uv","brf":"中等","txt":"屬中等強度紫外線輻射天氣，外出時建議塗擦SPF高於15、PA+的防晒護膚品，戴帽子、太陽鏡。"},{"type":"cw","brf":"較適宜","txt":"較適宜洗車，未來一天無雨，風力較小，擦洗一新的汽車至少能保持一天。"},{"type":"air","brf":"中","txt":"氣象條件對空氣汙染物稀釋、擴散和清除無明顯影響，易感人群應適當減少室外啟用時間。"}]}]}

 

JSON是一種優秀的文本資訊的表現格式，具體文法如下：

1. 資料在成對的名稱和數值中
2. 資料由逗號分割
3. 大括弧儲存對象
4. 中括弧儲存數組

JSON值可以是：

• 數字
• 字串
• 邏輯值
• 數組
• 對象
• null

isJSON()的編寫：

清除多餘的空格和分行符號——遍曆字串，對於不是在成對雙引號之間的空格和分行符號刪除。

檢查符號是否正確

1. 檢查整體的格式是否正確；"名稱":值

名稱被英文雙引號包圍；

名稱與值之間是一個英文冒號；

值有三種形式——被英文雙引號包圍、被中括弧或大括弧包圍、數字或邏輯值或null

名稱、冒號、值之間及前後可能出現空格或分行符號

 

Json格式 及編寫處理類