6.5 JavaScript常見問題 · ruyi.ai開發者文檔

## 6.5 JavaScript常見問題 ### 6.5.1 在線調試 #### 在線調試地址 [http://www.runoob.com/try/try.php?filename=tryjs\_events](http://www.runoob.com/try/try.php?filename=tryjs_events) #### 在線調試案例 ``` function test(){ var name="張三"; var age=17; var result = ""; if(age < 18){ result = name + " 你還未成年，不能觀看"; }else{ result = name + "歡迎觀看"; } return result; } document.write(test()); ``` 打開在線調試地址，在 **源代碼**中輸入： ``` <!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title> ruyi.ai </title> <script> function test() { var name = "張三"; var age = 17; var result = ""; if (age < 18) { result = name + " 你還未成年，不能觀看"; } else { result = name + "歡迎觀看"; } return result; } document.write(test()); </script> </head> <body> </body> </html> ``` 提交運行后，可以看到運行結果： ![![Alt text](./4-3-1.png)](images/4-3-1.png) ### 6.5.2 常見問題 #### 查名人李白的返回json： ``` { "_text": "名人李白", "msg_id": "226a653e-bc9a-4fc1-8a78-b74124723a94", "intents": [ { "parameters": { "person": "李白", "key": "ccd34f0ff4cbc9770c568b6d4066998a515b7de2" }, "action": "先祖名人-舊版", "name": "先祖名人_查名人信息", "result": { "code": 200, "response": [ { "@id": "http://data.library.sh.cn/jp/entity/person/464z3akcx8e97hnp", "@type": "http://www.library.sh.cn/ontology/Person", "label": [ { "@language": "cht", "@value": "李白" }, { "@language": "chs", "@value": "李白" } ], "childOf": "http://data.library.sh.cn/jp/entity/person/7lxb2uo35t5hhll7", "spouseOf": "http://data.library.sh.cn/jp/entity/person/l33x3r4rkr939uhd", "birthday": "乾隆辛巳年二月十七日辰時", "courtesyName": "萬同", "deathday": "道光庚寅年正月二十九日酉時", "description": "朝檜公長子字萬同生於乾隆辛巳年二月十七日辰時卒於道光庚寅年正月二十九日酉時遷居繁昌縣黃單橋卒葬其地\r\n配劉氏生於乾隆壬午年十月十三日酉時卒於道光乙酉年五月二十二日酉時偕夫同遷同葬\r\n生子三文佩文道文綺", "genealogyName": "白", "orderOfSeniority": "1", "relatedWork": "http://data.library.sh.cn/jp/resource/work/kkgv5g289866rbm4", "roleOfFamily": "http://data.library.sh.cn/jp/vocab/ancestor/xian-zu", "familyName": "http://data.library.sh.cn/authority/familyname/h5ce5gtiilgtrjz5", "@context": { "roleOfFamily": { "@id": "http://www.library.sh.cn/ontology/roleOfFamily", "@type": "@id" }, "familyName": { "@id": "http://xmlns.com/foaf/0.1/familyName", "@type": "@id" }, "description": "http://www.library.sh.cn/ontology/description", "spouseOf": { "@id": "http://purl.org/vocab/relationship/spouseOf", "@type": "@id" }, "courtesyName": "http://www.library.sh.cn/ontology/courtesyName", "label": "http://bibframe.org/vocab/label", "birthday": "http://www.library.sh.cn/ontology/birthday", "relatedWork": { "@id": "http://www.library.sh.cn/ontology/relatedWork", "@type": "@id" }, "deathday": "http://www.library.sh.cn/ontology/deathday", "childOf": { "@id": "http://purl.org/vocab/relationship/childOf", "@type": "@id" }, "genealogyName": "http://www.library.sh.cn/ontology/genealogyName", "orderOfSeniority": "http://www.library.sh.cn/ontology/orderOfSeniority" } } ], "text": "李白，字萬同", "type": "dialog" }, "outputs": [ { "type": "wechat.text", "property": { "text": "李白，字萬同" } } ], "score": "1.0", "scoreColor": "c4", "is_match": 1, "id": "8d76f8e4-a51f-4c78-9b30-c05f06da3164" } ], "meta_process_milliseconds": 6024 } ``` 如上的json的返回字段中有@等特殊符號，對于引用特殊符號的處理方式是： ``` var mingzi = sys['out']['response'][0]['label'][0]['@value']; var dynasty = sys['out']['response'][0]['temporalValue']; var zi = sys['out']['response'][0]['courtesyName']; ``` 查詢名人或許會存在接口沒返回的情況，這是會報錯undefined，對于這種情況要預先定義下，處理方式是： ``` var result = ""; var result = sys.out.response; if (result == "未查詢到數據...") { return "我找不到這個名人呢"; } else { result = sys.out.response.result; } ``` 對于調用接口存在的404，408的類似code的報錯，處理方式是： ``` if (code == 404) { return "沒有找到你要的資源"; } else if (code == 408) { return "剛才網絡不好，請您再說一次"; } ```