duplicate symbol _OBJC_CLASS_$_LYPersonModifyView

升级xcode7.3之后，系统在#import“xxx.h”时，会连同xxx.m文件一块儿提示，手速快的童鞋很是容易忽视，直接#import“LYPersonModifyView.m”结果一编译就会报错.

错误以下：

duplicate symbol _OBJC_CLASS_$_LYPersonModifyView in:

    /Users/liuyu/Library/Developer/Xcode/DerivedData/QinWuBing-bmhkjfhzujrajleckazozvzqjgxw/Build/Intermediates/QinWuBing.build/Debug-iphonesimulator/QinWuBing.build/Objects-normal/x86_64/LYPersonModifyViewController.o

    /Users/liuyu/Library/Developer/Xcode/DerivedData/QinWuBing-bmhkjfhzujrajleckazozvzqjgxw/Build/Intermediates/QinWuBing.build/Debug-iphonesimulator/QinWuBing.build/Objects-normal/x86_64/LYPersonModifyView.o

简单说明，由于你在蓝色区域LYPersonModifyViewController类里面#import了LYPersonModifyView.m,  因此要改一下，改为#import “LYPersonModifyView.h”。