我真的不明白爲什麼這是行不通的:關聯數組/對象 - 用點號獲取值
thing = {
img78:{ exifmanufacturer:"Canon", exifmodel:"Canon EOS 450D", exifexposuretime:"1/125", exiffstop:"71/10", exifiso:"200"},
img79:{ exifmanufacturer:"Canon", exifmodel:"Canon EOS 550D", exifexposuretime:"1/125", exiffstop:"71/10", exifiso:"100"},
img80:{ exifmanufacturer:"Canon", exifmodel:"Canon EOS 550D", exifexposuretime:"1/30", exiffstop:"16/1", exifiso:"250"},
img81:{ exifmanufacturer:"NIKON CORPORATION", exifmodel:"NIKON D700", exifexposuretime:"10/600", exiffstop:"71/10", exifiso:"800"},
img82:{ exifmanufacturer:"NIKON CORPORATION", exifmodel:"NIKON D700", exifexposuretime:"10/2500", exiffstop:"90/10", exifiso:"800"},
img83:{ exifmanufacturer:"NIKON CORPORATION", exifmodel:"NIKON D700", exifexposuretime:"10/600", exiffstop:"71/10", exifiso:"800"},
img77:{ exifmanufacturer:"Canon", exifmodel:"Canon EOS 450D", exifexposuretime:"1/160", exiffstop:"8/1", exifiso:"100"},
img69:{ exifmanufacturer:"NIKON CORPORATION", exifmodel:"NIKON D700", exifexposuretime:"10/600", exiffstop:"71/10", exifiso:"800"}
};
var imageid = 'img80';
console.log('myVar1: ', thing.img80.exifmodel);
console.log('myVar2: ', thing.imageid.exifmodel);
輸出:
myVar1: Canon EOS 550D
thing.imageid is undefined
我本來以爲這將是另一邊。
也許介於'[imageid] .exifmodel'之間? – 2010-08-03 19:57:22
@quixoto - Woops,趕上,謝謝,並更新:) – 2010-08-03 19:57:53
啊......'事[imageid] .exifmodel'我一直在嘗試與方括號和點的各種組合,但不是那一個。謝謝! – xgarb 2010-08-03 20:10:24