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我想更改字典中對象的值,但字典結構很複雜。那是;在複雜的plist文件中設置對象的值
<dict>
<key>Content</key>
<array>
<dict>
<key>Description</key>
<string></string>
<key>Duration</key>
<string></string>
<key>Image</key>
<string></string>
</dict>
<dict>
<key>Description</key>
<string></string>
<key>Duration</key>
<string></string>
<key>Image</key>
<string></string>
</dict>
</array>
</dict>
我可以訪問(其中plist文件被稱爲數據)
[Data objectForKey:[[[Data objectForKey:@"Content"]objectAtIndex:selectedIndex]objectForKey:@"Description"]]
如何設置的值,在此對象的元素?