diff --git a/history/006_snake/src/main/java/com/gitee/drinkjava2/frog/organ/Line.java b/history/006_snake/src/main/java/com/gitee/drinkjava2/frog/organ/Line.java
new file mode 100644
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--- /dev/null
+++ b/history/006_snake/src/main/java/com/gitee/drinkjava2/frog/organ/Line.java
@@ -0,0 +1,108 @@
+/*
+ * Copyright 2018 the original author or authors. 
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by
+ * applicable law or agreed to in writing, software distributed under the
+ * License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS
+ * OF ANY KIND, either express or implied. See the License for the specific
+ * language governing permissions and limitations under the License.
+ */
+package com.gitee.drinkjava2.frog.organ;
+
+import java.awt.Color;
+
+import com.gitee.drinkjava2.frog.Animal;
+import com.gitee.drinkjava2.frog.brain.BrainPicture;
+import com.gitee.drinkjava2.frog.brain.Cell;
+import com.gitee.drinkjava2.frog.brain.Organ;
+import com.gitee.drinkjava2.frog.brain.Zone;
+import com.gitee.drinkjava2.frog.util.RandomUtils;
+
+/**
+ * Line is a line between 2 organs or 2 lines
+ * 
+ * 这是一个随机方式连接两端的Organ,一个Organ对应一条线，它是从旧版的RandomConnectGroup改造过来，这是一种最简单的神经元排列方式和传导方式
+ * 信号采用加、减方式，信号(能量强度)不会随时间遗失(熵守恒)。 Line的两头可以位于器官内的任一个位置，也可以位于另一个line的body上
+ * 
+ * 以后考虑添加以下不同类型的Line类器官：<br>
+ * 1. 一个器官对应多个Line(神经元) 2.
+ * 神经元的兴奋值与时间相关，比如随时间流逝按指数曲线递减、神经元之间的联系强度与重复次数相关，反映记忆典线规律 3.
+ * 神经元有逻辑功能，对信号进行与、或、非转换
+ * 
+ * @author Yong Zhu
+ * @since 1.0
+ */
+
+public class Line extends Organ {
+	private static final long serialVersionUID = 1L;
+
+	public Zone inputZone; // NOSONAR 输入触突区
+	public Zone outputZone; // NOSONAR 输出触突区
+	public Zone bodyZone; // NOSONAR 细胞本体所在位置，本体的作用是可以接收其它line的输出信号
+
+	@Override
+	public boolean allowBorrow() { // 是否允许在精子中将这个器官借出
+		return true;
+	}
+
+	@Override
+	public void initOrgan(Animal a) {
+		if (!initilized) {
+			initilized = true;
+			inputZone = RandomUtils.randomZoneInOrgans(a);
+			outputZone = RandomUtils.randomZoneInOrgans(a);
+			bodyZone = new Zone(inputZone, outputZone);
+		}
+		this.fat = 0;// 每次fat清0，因为遗传下来的fat不为0
+		Cell c = new Cell();
+		c.input = inputZone;
+		c.output = outputZone;
+		c.body = bodyZone;
+		c.organ = this;
+		a.cells.add(c);
+	}
+
+	/** Line如果input是另一个line的body，吸收能量， Line如果output是另一个line的body,放出能量 */
+	@Override
+	public void active(Animal a, Cell c) {
+		if (RandomUtils.percent(95)) // TODO: 待优化 这个会严重影响速度，所以降低它的机率
+			return;
+		for (Cell cell : a.cells) {
+			if (cell.energy > organActiveEnergy && c.input.nearby(cell.body)) {
+				c.organ.fat++;
+				cell.energy -= organActiveEnergy;
+				c.energy += organActiveEnergy;
+			}
+			if (c.energy >= organOutputEnergy && c.output.nearby(cell.body)) {
+				c.energy -= organOutputEnergy;
+				cell.energy += organOutputEnergy;
+			}
+		}
+	}
+
+	@Override
+	public Organ[] vary() {
+		organOutputEnergy = RandomUtils.varyInLimit(organOutputEnergy, -3, 3);
+		if (fat <= 0 && RandomUtils.percent(30))// 如果胖值为0，表示这个组的细胞没有用到，可以小概率丢掉它了
+			return new Organ[] {};
+		if (RandomUtils.percent(3)) // 有3%的几率丢掉它，防止这个器官数量只增不减
+			return new Organ[] {};
+		return new Organ[] { this };
+	}
+
+	@Override
+	public void drawOnBrainPicture(Animal a, BrainPicture pic) {// 把自已这个器官在脑图上显示出来
+		if (fat <= 0)
+			pic.setPicColor(Color.LIGHT_GRAY); // 没用到? 灰色
+		else if (organOutputEnergy <= 0)
+			pic.setPicColor(Color.BLUE);
+		else
+			pic.setPicColor(Color.red); // 用到了?红色
+		pic.drawLine(inputZone, bodyZone);
+		pic.drawLine(bodyZone, outputZone);
+		pic.drawZone(bodyZone);
+		pic.setPicColor(Color.red);
+	}
+
+}