作业帮xx[i][j]=xx[i][j]>>4+xx[i][j-1];和 xx[i][j]=（xx[i][j]>>4）+xx[i][j-1];的结果为什么不一样啊
来源：学生作业帮助网 编辑：作业帮 时间：2024/11/19 16:30:47
![xx[i][j]=xx[i][j]>>4+xx[i][j-1];和 xx[i][j]=（xx[i][j]>>4）+xx[i][j-1];的结果为什么不一样啊](/uploads/image/z/14292843-51-3.jpg?t=xx%5Bi%5D%5Bj%5D%3Dxx%5Bi%5D%5Bj%5D%3E%3E4%2Bxx%5Bi%5D%5Bj-1%5D%3B%E5%92%8C+xx%5Bi%5D%5Bj%5D%3D%EF%BC%88xx%5Bi%5D%5Bj%5D%3E%3E4%EF%BC%89%2Bxx%5Bi%5D%5Bj-1%5D%3B%E7%9A%84%E7%BB%93%E6%9E%9C%E4%B8%BA%E4%BB%80%E4%B9%88%E4%B8%8D%E4%B8%80%E6%A0%B7%E5%95%8A)
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xx[i][j]=xx[i][j]>>4+xx[i][j-1];和 xx[i][j]=（xx[i][j]>>4）+xx[i][j-1];的结果为什么不一样啊
xx[i][j]=xx[i][j]>>4+xx[i][j-1];和 xx[i][j]=（xx[i][j]>>4）+xx[i][j-1];的结果为什么不一样啊
xx[i][j]=xx[i][j]>>4+xx[i][j-1];和 xx[i][j]=（xx[i][j]>>4）+xx[i][j-1];的结果为什么不一样啊
因为“+”的优先级比“>>”高.括号的优先级最高.
不用括号,那就先算4+xx[i][j-1]