removed all the footers; formated all the files

2.7.md

@@ -115,19 +115,19 @@ channel通过操作符`<-`来接收和发送数据
 	)
 
 	func fibonacci(n int, c chan int) {
-			x, y := 1, 1
-			for i := 0; i < n; i++ {
-					c <- x
-					x, y = y, x + y
-			}
-			close(c)
+		x, y := 1, 1
+		for i := 0; i < n; i++ {
+			c <- x
+			x, y = y, x + y
+		}
+		close(c)
 	}
 
 	func main() {
 		c := make(chan int, 10)
 		go fibonacci(cap(c), c)
 		for i := range c {
-			 fmt.Println(i)
+			fmt.Println(i)
 		}
 	}
 
@@ -149,13 +149,13 @@ channel通过操作符`<-`来接收和发送数据
 	func fibonacci(c, quit chan int) {
 		x, y := 1, 1
 		for {
-				select {
-				case c <- x:
-						  x, y = y, x + y
-				case <-quit:
+			select {
+			case c <- x:
+				x, y = y, x + y
+			case <-quit:
 			fmt.Println("quit")
-						return
-				}
+				return
+			}
 		}
 	}
 
@@ -187,6 +187,3 @@ channel通过操作符`<-`来接收和发送数据
    * [目录](<preface.md>)
    * 上一章: [interface](<2.6.md>)
    * 下一节: [总结](<2.8.md>)
-
-## LastModified
-   * $Id$