没懂，连着立墙为啥要重新设计？
这是俯视图，只是想把中间空的那块掏大

++++++++++++++++++++++
+                    +
+                    +
+                    +
+                    +
+--------++++--------+
+        +  +        +
+--------+  +--------+
+        +  +        +
+--------+  +--------+
+        +  +        +
+--------+  +--------+
+        +  +        +
+--------+  +--------+
+        +  +        +
+--------+  +--------+



【 在 yanxuhess 的大作中提到: 】
: 那不还是得重新设计
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