diff --git a/114-For/for-0.gop b/114-For/for-0.gop
new file mode 100644
index 0000000..f511218
--- /dev/null
+++ b/114-For/for-0.gop
@@ -0,0 +1,2 @@
+# For loop
+// Go+ has only one looping keyword: for, with several forms.
diff --git a/114-For/for-1.gop b/114-For/for-1.gop
new file mode 100644
index 0000000..34e344f
--- /dev/null
+++ b/114-For/for-1.gop
@@ -0,0 +1,26 @@
+# 1、for/<-
+// This is the most common form. You can use it with a slice, map, numeric range or custom iterators.
+//
+// The for value <- arr/map form is used for going through elements of a slice or a map.
+//
+// If an index is required, an alternative form for index, value <- arr can be used.
+
+names := ["Sam", "Peter"]
+for i, name <- names {
+	println i, name
+}
+
+m := {"one": 1, "two": 2}
+for key, val <- m {
+	println key, val
+}
+for key, _ <- m {
+	println key
+}
+
+for val <- names {
+	println val
+}
+for val <- m {
+	println val
+}
diff --git a/114-For/for-2.gop b/114-For/for-2.gop
new file mode 100644
index 0000000..7e95dc0
--- /dev/null
+++ b/114-For/for-2.gop
@@ -0,0 +1,14 @@
+# 2、Range for
+// You can use range expression (start:end:step) in for loop.
+
+for i <- :5 {
+	println i
+}
+
+for i <- 1:5 {
+	println i
+}
+
+for i <- 1:5:2 {
+	println i
+}
diff --git a/114-For/for-3.gop b/114-For/for-3.gop
new file mode 100644
index 0000000..b225bf1
--- /dev/null
+++ b/114-For/for-3.gop
@@ -0,0 +1,11 @@
+# 3、for/<-/if
+// All loops of for/<- form can have an optional if condition.
+
+numbers := [0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
+for num <- numbers if num%3 == 0 {
+	println num
+}
+
+for num <- :10 if num%3 == 0 {
+	println num
+}
diff --git a/114-For/for-4.gop b/114-For/for-4.gop
new file mode 100644
index 0000000..e1b5175
--- /dev/null
+++ b/114-For/for-4.gop
@@ -0,0 +1,16 @@
+# 4、Condition for
+// The condition can be omitted, resulting in an infinite loop. You can use break or return to end the loop.
+
+sum := 0
+i := 1
+for i <= 100 {
+	sum += i
+	i++
+}
+println sum
+
+for {
+	if sum > 0 {
+		break
+	}
+}
diff --git a/114-For/for-5.gop b/114-For/for-5.gop
new file mode 100644
index 0000000..37b7e24
--- /dev/null
+++ b/114-For/for-5.gop
@@ -0,0 +1,9 @@
+# 5、C for
+// 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
+}
diff --git a/114-For/for-6.gop b/114-For/for-6.gop
new file mode 100644
index 0000000..873e4ef
--- /dev/null
+++ b/114-For/for-6.gop
@@ -0,0 +1,25 @@
+# break and continue
+// How do you get out of an infinite for loop without using the keyboard or
+// turning off your computer? That’s the job of the break statement. It exits the
+// loop immediately, just like the break statement in other languages. Of course,
+// you can use break with any for statement, not just the infinite for statement.
+//
+// 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.
+
+for i := 1; i <= 100; i++ {
+	if i%3 == 0 && i%5 == 0 {
+		println("FizzBuzz")
+		continue
+	}
+	if i%3 == 0 {
+		println("Fizz")
+		continue
+	}
+	if i%5 == 0 {
+		println("Buzz")
+		break
+	}
+	println(i)
+}
diff --git a/114-For/for-7.gop b/114-For/for-7.gop
new file mode 100644
index 0000000..f02f37a
--- /dev/null
+++ b/114-For/for-7.gop
@@ -0,0 +1,18 @@
+# Labeling Your “for” Statements
+// By default, the break and continue keywords apply to the for loop that
+// directly contains them. What if you have nested for loops and you want to exit
+// or skip over an iterator of an outer loop? Let’s look at an example. We’re going
+// to modify our string iterating program to stop iterating through a string as
+// soon as it hits a letter “l”
+
+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
+			}
+		}
+		println()
+	}
diff --git a/114-For/for.gop b/114-For/for.gop
deleted file mode 100644
index e5f0afb..0000000
--- a/114-For/for.gop
+++ /dev/null
@@ -1,31 +0,0 @@
-// `for` is Go+'s only looping construct. Here are
-// some basic types of `for` loops.
-
-// The most basic type, with a single condition.
-i := 1
-for i <= 3 {
-	println i
-	i = i + 1
-}
-
-// A classic initial/condition/after `for` loop.
-for j := 7; j <= 9; j++ {
-	println j
-}
-
-// `for` without a condition will loop repeatedly
-// until you `break` out of the loop or `return` from
-// the enclosing function.
-for {
-	println "loop"
-	break
-}
-
-// You can also `continue` to the next iteration of
-// the loop.
-for n := 0; n <= 5; n++ {
-	if n%2 == 0 {
-		continue
-	}
-	println n
-}
diff --git a/121-For-Each/for-each-1.gop b/121-For-Each/for-each-1.gop
new file mode 100644
index 0000000..24ab0f4
--- /dev/null
+++ b/121-For-Each/for-each-1.gop
@@ -0,0 +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.
diff --git a/121-For-Each/for-each-2.gop b/121-For-Each/for-each-2.gop
new file mode 100644
index 0000000..25c6fc1
--- /dev/null
+++ b/121-For-Each/for-each-2.gop
@@ -0,0 +1,18 @@
+# The for-range Statement
+// What makes a for-range loop interesting is that you get two loop variables.
+// The first variable is the position in the data structure being iterated, while the
+// second is value at that position. The idiomatic names for the two loop variables
+// depend on what is being looped over. When looping over an array, slice, or
+// string, an i for index is commonly used. When iterating through a map, k (for
+// 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.
+//
+// If you don’t need to access the key, use an underscore (_) as the variable’s name. This tells Go+ to ignore the
+// value.
+
+evenVals := []int{2, 4, 6, 8, 10, 12}
+for _, v := range evenVals {
+	println(v)
+}
diff --git a/121-For-Each/for-each-3.gop b/121-For-Each/for-each-3.gop
new file mode 100644
index 0000000..689f08b
--- /dev/null
+++ b/121-For-Each/for-each-3.gop
@@ -0,0 +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,
+}
+for i := 0; i < 3; i++ {
+	println("Loop", i)
+	for k, v := range m {
+		println(k, v)
+	}
+}
diff --git a/121-For-Each/for-each.gop b/121-For-Each/for-each.gop
deleted file mode 100644
index 8b13789..0000000
--- a/121-For-Each/for-each.gop
+++ /dev/null
@@ -1 +0,0 @@
-