您好我有足球比分的本地JSON文件。虽然使用JavaScript获得某个分数或团队名称，但我如何循环？
以下是JSON：
{
"w": 1,
"t": "PRE",
"gms": [
{
"d": "Thu",
"gsis": 55425,
"h": "NE",
"vnn": "Jaguars",
"q": "F",
"vs": 12,
"v": "JAC",
"rz": -1,
"hs": 47,
"hnn": "Patriots",
"t": "7:30",
"ga": "",
"eid": 2011081152
},
{
"d": "Thu",
"gsis": 55424,
"h": "PHI",
"vnn": "Ravens",
"q": "F",
"vs": 6,
"v": "BAL",
"rz": -1,
"hs": 13,
"hnn": "Eagles",
"t": "7:30",
"ga": "",
"eid": 2011081151
},
{
"d": "Thu",
"gsis": 55423,
"h": "SD",
"vnn": "Seahawks",
"q": "F",
"vs": 24,
"v": "SEA",
"rz": -1,
"hs": 17,
"hnn": "Chargers",
"t": "8:00",
"ga": "",
"eid": 2011081153
},
{
"d": "Thu",
"gsis": 55426,
"h": "DAL",
"vnn": "Broncos",
"q": "F",
"vs": 23,
"v": "DEN",
"rz": -1,
"hs": 24,
"hnn": "Cowboys",
"t": "8:30",
"ga": "",
"eid": 2011081154
},
{
"d": "Thu",
"gsis": 55427,
"h": "OAK",
"vnn": "Cardinals",
"q": "F",
"vs": 24,
"v": "ARI",
"rz": -1,
"hs": 18,
"hnn": "Raiders",
"t": "10:00",
"ga": "",
"eid": 2011081155
},
{
"d": "Fri",
"gsis": 55430,
"h": "ATL",
"vnn": "Dolphins",
"q": "F",
"vs": 28,
"v": "MIA",
"rz": -1,
"hs": 23,
"hnn": "Falcons",
"t": "7:30",
"ga": "",
"eid": 2011081252
},
{
"d": "Fri",
"gsis": 55429,
"h": "DET",
"vnn": "Bengals",
"q": "F",
"vs": 3,
"v": "CIN",
"rz": -1,
"hs": 34,
"hnn": "Lions",
"t": "7:30",
"ga": "",
"eid": 2011081251
},
{
"d": "Fri",
"gsis": 55431,
"h": "WAS",
"vnn": "Steelers",
"q": "F",
"vs": 7,
"v": "PIT",
"rz": -1,
"hs": 16,
"hnn": "Redskins",
"t": "7:30",
"ga": "",
"eid": 2011081253
},
{
"d": "Fri",
"gsis": 55428,
"h": "KC",
"vnn": "Buccaneers",
"q": "F",
"vs": 25,
"v": "TB",
"rz": -1,
"hs": 0,
"hnn": "Chiefs",
"t": "8:00",
"ga": "",
"eid": 2011081255
},
{
"d": "Fri",
"gsis": 55432,
"h": "NO",
"vnn": "49ers",
"q": "F",
"vs": 3,
"v": "SF",
"rz": -1,
"hs": 24,
"hnn": "Saints",
"t": "8:00",
"ga": "",
"eid": 2011081254
},
{
"d": "Sat",
"gsis": 55433,
"h": "CLE",
"vnn": "Packers",
"q": "F",
"vs": 17,
"v": "GB",
"rz": -1,
"hs": 27,
"hnn": "Browns",
"t": "7:30",
"ga": "",
"eid": 2011081351
},
{
"d": "Sat",
"gsis": 55437,
"h": "CAR",
"vnn": "Giants",
"q": "F",
"vs": 10,
"v": "NYG",
"rz": -1,
"hs": 20,
"hnn": "Panthers",
"t": "8:00",
"ga": "",
"eid": 2011081355
},
{
"d": "Sat",
"gsis": 55434,
"h": "CHI",
"vnn": "Bills",
"q": "F",
"vs": 3,
"v": "BUF",
"rz": -1,
"hs": 10,
"hnn": "Bears",
"t": "8:00",
"ga": "",
"eid": 2011081352
},
{
"d": "Sat",
"gsis": 55435,
"h": "STL",
"vnn": "Colts",
"q": "F",
"vs": 10,
"v": "IND",
"rz": -1,
"hs": 33,
"hnn": "Rams",
"t": "8:00",
"ga": "",
"eid": 2011081353
},
{
"d": "Sat",
"gsis": 55436,
"h": "TEN",
"vnn": "Vikings",
"q": "F",
"vs": 3,
"v": "MIN",
"rz": -1,
"hs": 14,
"hnn": "Titans",
"t": "8:00",
"ga": "",
"eid": 2011081354
},
{
"d": "Mon",
"gsis": 55438,
"h": "HOU",
"vnn": "Jets",
"q": "P",
"vs": 0,
"v": "NYJ",
"rz": -1,
"hs": 0,
"hnn": "Texans",
"t": "8:00",
"ga": "",
"eid": 2011081551
}
],
"y": 2011,
"gd": "0"
}
很抱歉，我还在学习，希望能够掌握这一点。
我会这样做
eval（JSONfile）??我不知道该怎么做才能解析并阅读它？
答案 0 :(得分：1)
要解析它，您可以使用.eval()，如您在问题中所述。
最好是使用JSON解析器。现代浏览器内置它：
var js_obj = JSON.parse( my_json );
对于不支持JSON.parse的浏览器，您可以添加.parse和.stringify添加的json2 library。
然后就像通常那样枚举for-in语句（或数组的for语句）。
答案 1 :(得分：0)
编辑：抱歉没有告诉你如何阅读JSON字符串。
如果您将字符串直接写入JavaScipt，例如。使用PHP，您可以直接将其设置为变量：
var scores = <?php echo $scoresJSON ?>
如果它作为字符串存储在JavaScript中，那么如果支持则可以使用JSON.parse，否则为eval：
var scores = {};
if(typeof(JSON) === 'object') { scores = JSON.parse(jsonString); }
else { scores = eval(jsonString); }
或者您可以使用jQuery的方法。
参考文献：
http://api.jquery.com/jQuery.parseJSON/
https://developer.mozilla.org/En/Using_native_JSON#Parsing_JSON.c2.a0strings
至于那时使用数据：
/**
* Return array of all scores for a team acronym
* E.g. for MIN it would return: [3]
* If the same team had multiple games it would return scores for all games.
* E.g.: [3, 6, 0, 23]
*/
function getScoresForTeam(teamAcronym, scoresObject) {
// Create scores array, to populate later
var scores = [];
// Look through each game in JSON
for(i = 0; i < jsonString.gms.length; i++) {
var thisGame = jsonString.gms[i]
// Check if they were team 'v'
if(thisGame.v === teamAcronym) {
scores.push(thisGame.vs);
} else if(thisGame.h === teamAcronym) {
scores.push(thisGame.hs);
}
}
// Return scores array
return scores;
}
我在浏览器（Chrome）中对此进行了测试：
> getScoresForTeam('MIN',scores);
> [3]