XOR算法是啥?

Posted 2023-04-02

如上

1. xor （异或） ⊕，二进制运算。可逆运算。 　　1 xor 1=0，0 xor 0=0，1 xor 0=1，0 xor 1=1。 http://baike.baidu.com/view/64546.htm

参考资料：http://baike.baidu.com/view/64546.htm

参考技术A xor 异或
是二进制运算，可逆运算。 可用于加密计算

Android Studio - Cannot reload AVD list (d:skin)

问题描述：

I‘m trying to get google maps on an application on my android device. I was testing how it works so i started with adding a simple map. However when i try to run it it gives me this error.

Cannot reload AVD list: cvc-complex-type.2.4.d: Invalid content was found starting with element ‘d:skin‘. No child element is expected at this point. Error parsing /Applications/Android Studio.app/sdk/system-images/android-22/android-wear/armeabi-v7a/devices.xml cvc-complex-type.2.4.d: Invalid content was found starting with element ‘d:skin‘. No child element is expected at this point. Error parsing /Applications/Android Studio.app/sdk/system-images/android-22/android-wear/x86/devices.xm

 

解决方式：

   点击工具栏上的 SDK Manager  ---- 找到Android Wear ARM 和   Intel images 选项， 选中删除即可 ！