最近我尝试了一个名为 medical Dictionary 的API，它以XML格式输出。我重新编码并创建了以下批量代码。 我需要知道如何从以下JSON代码中检索“携带营养和氧气的脊椎动物的心脏，动脉，毛细血管和静脉中循环的液体，并从身体的各个部位带走废物”。
result ={
"@attributes": {
"version": "1.0"
},
"entry": [
{
"@attributes": {
"id": "blood"
},
"hw": "blood",
"pr": "ˈbləd",
"sound": {
"wav": "blood001.wav",
"wpr": "!blud"
},
"fl": "noun",
"lb": "often attrib",
"def": {
"sensb": [
{
"sens": {
"sn": "1",
"dt": "the fluid that circulates in the heart, arteries, capillaries, and veins of a vertebrate animal carrying nourishment and oxygen to and bringing away waste products from all parts of the body"
}
},
{
"sens": {
"sn": "2",
"dt": "a fluid of an invertebrate comparable to blood"
}
},
{
"sens": {
"sn": "3",
"dt": "blood regarded in medieval physiology as one of the four humors and believed to be the seat of the emotions"
}
},
{
"sens": {
"sn": "4",
"dt": "descent from parents of recognized breed or pedigree"
}
}
]
}
},
{
"@attributes": {
"id": "blood bank"
},
"hw": "blood bank",
"fl": "noun",
"def": {
"sensb": {
"sens": {
"dt": [
"a place for storage of or an institution storing blood or plasma",
"blood so stored"
],
"sd": "also"
}
}
},
"uro": {
"ure": "blood bank·er",
"pr": "-ˈbaŋ-kər",
"sound": {
"wav": "banker01.wav",
"wpr": "!baN-kur"
},
"fl": "noun"
}
},
{
"@attributes": {
"id": "blood banking"
},
"hw": "blood bank·ing",
"pr": "-ˈbaŋ-kiŋ",
"sound": {
"wav": "blood01m.wav",
"wpr": "!blud-!baN-kiN"
},
"fl": "noun",
"def": {
"sensb": {
"sens": {
"dt": "the activity of administering or working in a blood bank"
}
}
}
},
{
"@attributes": {
"id": "blood{ndash}borne"
},
"hw": "blood–borne",
"pr": "-ˌbȯrn",
"sound": {
"wav": "blood06m.wav"
},
"fl": "adjective",
"def": {
"sensb": {
"sens": {
"dt": "carried or transmitted by the blood "
}
}
}
},
{
"@attributes": {
"id": "blood{ndash}brain barrier"
},
"hw": "blood–brain barrier",
"fl": "noun",
"def": {
"sensb": {
"sens": {
"dt": "a naturally occurring barrier created by the modification of brain capillaries (as by reduction in fenestration and formation of tight cell-to-cell contacts) that prevents many substances from leaving the blood and crossing the capillary walls into the brain tissues "
}
}
}
},
{
"@attributes": {
"id": "blood cell"
},
"hw": "blood cell",
"fl": "noun",
"def": {
"sensb": {
"sens": {
"dt": "a cell or platelet normally present in blood "
}
}
}
},
{
"@attributes": {
"id": "blood clot"
},
"hw": "blood clot",
"fl": "noun",
"def": {
"sensb": {
"sens": {
"dt": {
"sx": "clot"
}
}
}
}
},
{
"@attributes": {
"id": "blood count"
},
"hw": "blood count",
"fl": "noun",
"def": {
"sensb": {
"sens": {
"dt": [
"the determination of the blood cells in a definite volume of blood",
"the number of cells so determined "
],
"sd": "also"
}
}
}
},
{
"@attributes": {
"id": "blood doping"
},
"hw": "blood doping",
"fl": "noun",
"def": {
"sensb": {
"sens": {
"dt": "a technique for temporarily improving athletic performance in which oxygen-carrying red blood cells previously withdrawn from an athlete are injected back just before an event "
}
}
}
},
{
"@attributes": {
"id": "blood dust"
},
"hw": "blood dust",
"fl": "noun",
"def": {
"sensb": {
"sens": {
"dt": {
"sx": "HEMOCONIA"
}
}
}
}
}
]
};
答案 0 :(得分：0)
如果您想通过
进行迭代，可以像这样访问它for (var i = 0; i < result.entry.length; i++) {
for(var j =0; j < result.entry[i].def.sensb.length; j++) {
if (result.entry[i].def.sensb[j].sens.dt === 'the fluid that circulates in the heart, arteries, capillaries, and veins of a vertebrate animal carrying nourishment and oxygen to and bringing away waste products from all parts of the body') {
// matches your description
break;
}
}
}
或者如果你想要第一个，你可以通过
访问它result.entry[0].def.sensb[0].sens.dt