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为什么提交这份PR (why to submit this PR)
源文件:AliOS-Things\solutions\ucloud_ai_demo\ucloud_ai_demo.c
445行处的imagerecog_classifying_rubbish_callback和476行的imagerecog_detect_fruits_callback两个函数中并无返回值,但函数类型为int,未定义的返回值可能造成后续结果的混乱
你的解决方案是什么 (what is your solution)
在473行和500行处的函数结尾添加返回值return 0
在什么测试环境下测试通过 (what is the test environment)
已通过