commit 534d9fa5838e51b7efd76ba0ee6630ad45d6cf47
Author: Dmitry Sirotkin <dsirotkin@ecom.tech>
Date:   Tue Feb 11 16:12:21 2025 +0300

    init

diff --git a/hw/calc/.vscode/launch.json b/hw/calc/.vscode/launch.json
new file mode 100644
index 0000000..608d3c6
--- /dev/null
+++ b/hw/calc/.vscode/launch.json
@@ -0,0 +1,15 @@
+{
+    // Use IntelliSense to learn about possible attributes.
+    // Hover to view descriptions of existing attributes.
+    // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
+    "version": "0.2.0",
+    "configurations": [
+        {
+            "name": "Launch Package",
+            "type": "go",
+            "request": "launch",
+            "mode": "auto",
+            "program": "${fileDirname}"
+        }
+    ]
+}
\ No newline at end of file
diff --git a/hw/calc/cmd/calc/calc.go b/hw/calc/cmd/calc/calc.go
new file mode 100644
index 0000000..f4ea45e
--- /dev/null
+++ b/hw/calc/cmd/calc/calc.go
@@ -0,0 +1,61 @@
+package main
+
+import (
+	"fmt"
+	"os"
+	"strconv"
+	c "calc/pkg"
+)
+
+func main() {
+
+	var x string
+	fmt.Println("Введите первое число:")
+	fmt.Scan(&x) 
+
+	numx, errx := Validatenumber(x)
+	fmt.Println(numx)
+
+	if errx != nil {
+		fmt.Println("Некорректное число. Пожалуйста, введите числовое значение.")
+		os.Exit(1)
+	}
+
+	var o string
+	fmt.Println("Выберите операцию (+, -, *, /)")
+	fmt.Scan(&o) 
+
+	if !Validateoperation(o) {
+		fmt.Println("Некорректная операция. Пожалуйста, используйте символы +, -, * или /.")
+		os.Exit(1)
+	}
+
+	var y string
+	fmt.Println("Введите второе число")
+	fmt.Scan(&y) 
+
+	numy, erry := Validatenumber(y)
+	fmt.Println(numy)
+
+	if erry != nil {
+		fmt.Println("Некорректное число. Пожалуйста, введите числовое значение.")
+		os.Exit(1)
+	}
+
+
+	fmt.Println(c.Calc(numx, numy, o))
+}
+
+func Validateoperation(s string) bool {
+	opertions := [...]string{"+", "-", "*", "/"}
+	for _, o := range opertions {
+		if o == s {
+			return true
+		}
+	}
+	return false
+}
+
+func Validatenumber(s string) (float64, error){
+	return strconv.ParseFloat(s, 64)
+}
diff --git a/hw/calc/go.mod b/hw/calc/go.mod
new file mode 100644
index 0000000..e1bf432
--- /dev/null
+++ b/hw/calc/go.mod
@@ -0,0 +1,3 @@
+module calc
+
+go 1.23.6
diff --git a/hw/calc/pkg/calc.go b/hw/calc/pkg/calc.go
new file mode 100644
index 0000000..cb1334f
--- /dev/null
+++ b/hw/calc/pkg/calc.go
@@ -0,0 +1,35 @@
+package calc
+
+import "fmt"
+
+
+func Calc(a, b float64, o string) (float64, error) {
+	
+	switch o {
+	case "+":
+		return sum(a, b), nil
+	case "-":
+		return sub(a, b), nil 
+	case "*":
+		return mul(a, b), nil
+	case "/":
+		return div(a, b), nil
+	}
+	return 0, fmt.Errorf("Uknown operation")
+}
+
+func sum(a, b float64) float64 {
+	return a + b
+}
+
+func sub(a, b float64) float64 {
+	return a - b
+}
+
+func mul(a, b float64) float64 {
+	return a * b
+}
+
+func div(a, b float64) float64 {
+	return a / b
+}
diff --git a/hw/calc/pkg/calc_test.go b/hw/calc/pkg/calc_test.go
new file mode 100644
index 0000000..2c8beab
--- /dev/null
+++ b/hw/calc/pkg/calc_test.go
@@ -0,0 +1,44 @@
+package calc
+
+import (
+	"testing"
+)
+
+func TestCalcUknownOperation(t *testing.T) {
+	_, err := Calc(1,1,"a")
+
+	if err == nil {
+		t.Fatalf("Should be error")
+	}
+}
+
+/* func Calc(a, b float64, o string) (float64, error) {
+	
+	switch o {
+	case "+":
+		return sum(a, b), nil
+	case "-":
+		return sub(a, b), nil 
+	case "*":
+		return mul(a, b), nil
+	case "/":
+		return div(a, b), nil
+	}
+	return 0, fmt.Errorf("Uknown operation")
+}
+
+func sum(a, b float64) float64 {
+	return a + b
+}
+
+func sub(a, b float64) float64 {
+	return a - b
+}
+
+func mul(a, b float64) float64 {
+	return a * b
+}
+
+func div(a, b float64) float64 {
+	return a / b
+} */
\ No newline at end of file
diff --git a/hw/calc/pkg/go.go b/hw/calc/pkg/go.go
new file mode 100644
index 0000000..58d0233
--- /dev/null
+++ b/hw/calc/pkg/go.go
@@ -0,0 +1,34 @@
+package calc
+
+import "fmt"
+
+
+func Calcc(a, b float64, o string) (float64, error) {	
+	switch o {
+	case "+":
+		return sum(a, b), nil
+	case "-":
+		return sub(a, b), nil 
+	case "*":
+		return mul(a, b), nil
+	case "/":
+		return div(a, b), nil
+	}
+	return 0, fmt.Errorf("Uknown operation")
+}
+
+func summ(a, b float64) float64 {
+	return a + b
+}
+
+func subb(a, b float64) float64 {
+	return a - b
+}
+
+func mull(a, b float64) float64 {
+	return a * b
+}
+
+func divv(a, b float64) float64 {
+	return a / b
+}
\ No newline at end of file
diff --git a/test/cmd/main.go b/test/cmd/main.go
new file mode 100644
index 0000000..6b4f326
--- /dev/null
+++ b/test/cmd/main.go
@@ -0,0 +1,18 @@
+package main
+
+import (
+	"fmt"
+	"time"
+	c "test/pkg/test"	
+	v "test/pkg"	
+)
+
+func add(a int, b int) {
+	time.Sleep(1 * time.Second)
+	fmt.Println(a + b)
+}
+
+func main() {
+	c.SimpleFor(4)
+	v.SimpleVar()
+}
diff --git a/test/go.mod b/test/go.mod
new file mode 100644
index 0000000..e047a36
--- /dev/null
+++ b/test/go.mod
@@ -0,0 +1,3 @@
+module test
+
+go 1.23.6
diff --git a/test/pkg/test/cycle.go b/test/pkg/test/cycle.go
new file mode 100644
index 0000000..9950f88
--- /dev/null
+++ b/test/pkg/test/cycle.go
@@ -0,0 +1,10 @@
+package cycle
+
+import "fmt"
+
+func SimpleFor(count int) {
+
+	for i := 0; i < count; i++ {
+		fmt.Println(i)
+	}
+}
diff --git a/test/pkg/variable.go b/test/pkg/variable.go
new file mode 100644
index 0000000..3ef1a28
--- /dev/null
+++ b/test/pkg/variable.go
@@ -0,0 +1,34 @@
+package variable
+
+import (
+	"fmt"
+)
+
+func SimpleVar() {
+	var a string = "initial"
+	fmt.Println(a)
+
+	var b, c int = 1, 2
+	fmt.Println(b, c)
+
+	var d = true
+	fmt.Println(d)
+
+	f:= "short"
+	fmt.Println(f)
+
+	var ar [4]int
+	for i :=0; i < len(ar); i++  {
+		fmt.Println(i)
+	}
+
+	//динамический массив
+	slice := make([]int, 3)
+	fmt.Println(len(slice))
+	fmt.Println(slice)
+	fmt.Println(len(slice))
+	slice = append(slice, 4)
+	fmt.Println(len(slice))
+	fmt.Println(slice)
+
+}