bug fixed for 对齐特性

data/3.C语言高阶/3.位运算/6.对齐特性/pack01.md

@@ -29,7 +29,7 @@ int main(int argc, char**){
 ## 答案
 
 ```c
-8 bytes
+16 bytes
 ```
 
 ## 选项
@@ -50,4 +50,10 @@ int main(int argc, char**){
 
 ```c
 24 bytes
+```
+
+### 选项4
+
+```c
+8 bytes
 ```
\ No newline at end of file