diff --git a/base/op/main.go b/base/op/main.go
new file mode 100644
index 0000000..bd859cf
--- /dev/null
+++ b/base/op/main.go
@@ -0,0 +1,44 @@
+package main
+
+import "fmt"
+
+func main() {
+	a := 1
+	b := 2
+
+	fmt.Printf("a: %d, b: %d\n", a, b)
+
+	// 变量交换
+	b ^= a
+	a ^= b
+	b ^= a
+
+	fmt.Printf("a: %d, b: %d\n", a, b)
+
+	fmt.Println("=========================================================")
+
+	fmt.Println("a+b =>", a+b)
+	fmt.Println("a-b =>", a-b)
+	fmt.Println("a*b =>", a*b)
+	fmt.Println("a/b =>", a/b)
+	fmt.Printf("a%%b => %d\n", a%b)
+	fmt.Println("a^b =>", a^b)
+
+	fmt.Println("=========================================================")
+
+	// 自增
+	b++
+	// 自减
+	a--
+	fmt.Printf("a: %d, b: %d\n", a, b)
+
+	fmt.Println("=========================================================")
+
+	// 关系运算符
+	fmt.Println("a==b :", a == b)
+	fmt.Println("a!=b :", a != b)
+	fmt.Println("a>b :", a > b)
+	fmt.Println("a>=b :", a >= b)
+	fmt.Println("a<b :", a < b)
+	fmt.Println("a<=b :", a <= b)
+}