(TODO:)下载图片,报错:warning: could not load any Objective-C class information from the dyld shared cache. This will significantly reduce the quality of type information available.
想使用NSInvocationOperation下载图片,然而并没有下载下来,
NSData为nil,
还有报错:(打断点就报错)
warning: could not load any Objective-C class information from the dyld shared cache. This will significantly reduce the quality of type information available.
现在这两个问题还没解决, 以后再看吧,先提交到git上
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