fix fmt error

Author: xlj

114-For/for-4.gop

@@ -4,14 +4,13 @@
 sum := 0
 i := 1
 for i <= 100 {
-    sum += i
-    i++
+	sum += i
+	i++
 }
 println sum
 
 for {
-    if sum > 0 {
-        break
-    }
+	if sum > 0 {
+		break
+	}
 }
-

114-For/for-5.gop

@@ -2,8 +2,8 @@
 // Finally, there's the traditional C style for loop. It's safer than the while form because with the latter it's easy to forget to update the counter and get stuck in an infinite loop.
 
 for i := 0; i < 10; i += 2 {
-    if i == 6 {
-        continue
-    }
-    println i
+	if i == 6 {
+		continue
+	}
+	println i
 }

114-For/for-6.gop

@@ -6,7 +6,7 @@
 //
 // Go+ also includes the continue keyword, which skips over rest of the body of a
 // for loop and proceeds directly to the next iteration. Technically, you don’t need
-// a continue statement. 
+// a continue statement.
 
 for i := 1; i <= 100; i++ {
 	if i%3 == 0 && i%5 == 0 {
@@ -22,4 +22,4 @@ for i := 1; i <= 100; i++ {
 		break
 	}
 	println(i)
-}
+}

114-For/for-7.gop

@@ -7,12 +7,12 @@
 
 samples := []string{"hello", "apple_π!"}
 outer:
-for _, sample := range samples {
-	for i, r := range sample {
-		println(i, r, string(r))
-		if r == 'l' {
-			continue outer
+	for _, sample := range samples {
+		for i, r := range sample {
+			println(i, r, string(r))
+			if r == 'l' {
+				continue outer
+			}
 		}
+		println()
 	}
-	println()
-}

121-For-Each/for-each-1.gop

@@ -1 +1 @@
-// In Go+ there is no foreach loop instead, the for loop can be used as “foreach“. There is a keyword range, you can combine for and range together and have the choice of using the key or value within the loop.
+// In Go+ there is no foreach loop instead, the for loop can be used as “foreach“. There is a keyword range, you can combine for and range together and have the choice of using the key or value within the loop.

121-For-Each/for-each-2.gop

@@ -7,12 +7,12 @@
 // key) is used instead.
 //
 // The second variable is frequently called v for value, but is sometimes given a
-// name based on the type of the values being iterated. 
+// name based on the type of the values being iterated.
 //
 // If you don’t need to access the key, use an underscore (_) as the variable’s name. This tells Go+ to ignore the
-// value. 
+// value.
 
 evenVals := []int{2, 4, 6, 8, 10, 12}
 for _, v := range evenVals {
-    println(v)
-}
+	println(v)
+}

121-For-Each/for-each-3.gop

@@ -1,16 +1,15 @@
-
 # Iterating Over Maps
 // There’s something interesting about how a for-range loop iterates over a
 // map.
 
 m := map[string]int{
-    "a": 1,
-    "c": 3,
-    "b": 2,
+	"a": 1,
+	"c": 3,
+	"b": 2,
 }
 for i := 0; i < 3; i++ {
-    println("Loop", i)
-    for k, v := range m {
-        println(k, v)
-    }
-}
+	println("Loop", i)
+	for k, v := range m {
+		println(k, v)
+	}
+}