{
"cities" : {
"San Francisco" : {
"location Name" : "San Francisco, CA",
"data" : "51.1"
},
"San Jose" : {
"location Name" : "San Jose, CA",
"data" : "52.5"
}
}
}
Run Code Online (Sandbox Code Playgroud)
怎么去加州圣何塞?
myJSON.cities.['San Jose'].[location name] 不起作用
怎么得到52.5?
myJSON.cities.['San Jose'].data?
你不能这样做既属性访问和索引.选择一个或另一个.
myJSON.cities['San Jose']['location Name']
Run Code Online (Sandbox Code Playgroud)
允许第二个,因为每个对象都是独立访问的.