freeRow模块改名line模块并暂时在“行”的管理上不再那么节约地使用内存

parts/line.lua

@@ -0,0 +1,22 @@
+local LINE={}
+local L={}--Storage
+local len=0--Length
+function LINE.new(val,isGarbage)
+    if len==0 then
+        for i=1,10 do
+            L[i]={0,0,0,0,0,0,0,0,0,0,garbage=false}
+        end
+        len=len+10
+    end
+    local t=L[len]
+    for i=1,10 do t[i]=val end
+    t.garbage=isGarbage==true
+    L[len]=nil
+    len=len-1
+    return t
+end
+function LINE.discard(t)
+    len=len+1
+    L[len]=t
+end
+return LINE