Zefeng Lu
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Zefeng Lu
一开始缺少头文件，但是添加头文件之后我就遇到了 Undefined symbols for architecture x86_64: "_OBJC_CLASS_$_MobClick", referenced from: objc-class-ref in SysSettingViewController.o ld: symbol(s) not found for architecture x86_64 clang: error: linker command failed with exit code 1 (use -v...