Javascript MongoDB赢得'；加载js文件

我有一个文件“world.json”导入到“worlds”MongoDB数据库中的“mondes”集合中，其结构如下

{
    "_id": ObjectId("5dff5a2d98dfef12b0c590b7"),
    "Code": "BFA",
    "Name": "Burkina Faso",
    "Continent": "Africa",
    "Region": "Western Africa",
    "SurfaceArea": 274000,
    "IndepYear": 1960,
    "Population": 11937000,
    "LifeExpectancy": 46.7,
    "GNP": 2425,
    "GNPOld": 2201,
    "LocalName": "Burkina Faso",
    "GovernmentForm": "Republic",
    "HeadOfState": "Blaise Compaor�",
    "Capital": {
        "ID": 549,
        "Name": "Ouagadougou",
        "District": "Kadiogo",
        "Population": 833000
    },
    "Code2": "BF",
    "Cities": [
        {
            "ID": 550,
            "Name": "Bobo-Dioulasso",
            "District": "Houet",
            "Population": 300000
        },
        {
            "ID": 551,
            "Name": "Koudougou",
            "District": "Boulkiemd�",
            "Population": 105000
        }
    ],
    "NotOffLang": [
        {
            "Language": "Busansi",
            "Percentage": 3.5
        },
        {
            "Language": "Dagara",
            "Percentage": 3.1
        },
        {
            "Language": "Dyula",
            "Percentage": 2.6
        },
        {
            "Language": "Ful",
            "Percentage": 9.7
        },
        {
            "Language": "Gurma",
            "Percentage": 5.7
        },
        {
            "Language": "Mossi",
            "Percentage": 50.2
        }
    ]
}

我编写了存储在c:\$Mongo\bin中的以下脚本“update.js”

db.mondes.find（{“大陆”：“非洲”}）.forEach(
功能（doc）{
temp=doc.Capital.Population；
如果（doc.Capital.Population>500000）{
变量温度=温度+1000；
}
其他条件（doc.Capital.Population<500000）{
温度=温度+500；
}
doc.Capital.Population=temp；
世界银行保存（doc）；
}
);

当我试图在mongo的shell中加载（“update.js”）时，它给了我以下错误：

2019-12-22T23:02:46.724+0100 E  QUERY    [js] uncaught exception: TypeError: doc.Capital is undefined :
    @update.js:7:1
    DBQuery.prototype.forEach@src/mongo/shell/query.js:494:9
    @update.js:3:1
    @(shell):1:1
    2019-12-22T23:02:46.724+0100 E  QUERY    [js] Error: error loading js file: update.js :
    @(shell):1:1

---

即使我用小写字母而不是大写字母写大写字母，上面的错误仍然存在。

最后我用（（doc |{}）.capital{}.Population而不是

---

doc.Capital.Population

你能打印你的

文件吗？你收藏了多少文件？可能还有其他未定义
大写
字段的文档。再次检查。238所有文档都包含Capital字段