+ 奇偶校验码
![](https://img.kancloud.cn/34/ba/34ba9e12357cdad244eb06b687f2b157_1550x869.png)
+ 循环冗余校验码
![](https://img.kancloud.cn/a9/ac/a9ac442b384e3907d9dc7cf134d3a15f_1397x793.png)
真题:
![](https://img.kancloud.cn/cd/78/cd785d65df6c866a01fa0c5c57d89871_1397x745.png)
+海明码
![](https://img.kancloud.cn/6c/d7/6cd72a2d2567258a1b89e09c30d85036_1391x788.png)