diff --git a/example_test.go b/example_test.go
new file mode 100644
index 0000000..210f1eb
--- /dev/null
+++ b/example_test.go
@@ -0,0 +1,105 @@
+package xyshanghai
+
+import (
+	"context"
+	"encoding/hex"
+	"encoding/json"
+	"testing"
+	"time"
+)
+
+// 测试用的密钥和盐值（实际使用时需替换为双方约定的值）
+var (
+	testSM4Key, _ = hex.DecodeString("0123456789abcdef0123456789abcdef") // 16字节
+	testSM3Salt   = []byte("test-salt")
+)
+
+func TestCreateOrder(t *testing.T) {
+	apiKey := NewAPIKey(testSM4Key, testSM3Salt)
+	client := NewClient(apiKey, WithBaseURL("https://api.example.com"), WithTimeout(10*time.Second))
+
+	req := &CreateOrderRequest{
+		ActCode:      "ACT001",
+		GoodsCode:    "123456",
+		ActOrderNum:  "00001",
+		Account:      "19912345678",
+		CallbackURL:  "https://xxx/notice",
+	}
+
+	resp, err := client.CreateOrder(context.Background(), req)
+	if err != nil {
+		t.Logf("CreateOrder error: %v", err)
+		// 实际测试中可能因为网络原因失败，这里仅验证逻辑
+		return
+	}
+	t.Logf("CreateOrder response: %+v", resp)
+}
+
+func TestQueryOrder(t *testing.T) {
+	apiKey := NewAPIKey(testSM4Key, testSM3Salt)
+	client := NewClient(apiKey, WithBaseURL("https://api.example.com"))
+
+	req := &QueryOrderRequest{
+		ActCode: "FBG6vdYqGE4mGX7EH/woEg==",
+		OrderNo: "HM1757046717684000102707339840b23222",
+	}
+
+	resp, err := client.QueryOrder(context.Background(), req)
+	if err != nil {
+		t.Logf("QueryOrder error: %v", err)
+		return
+	}
+	t.Logf("QueryOrder response: %+v", resp)
+}
+
+func TestRechargeOrder(t *testing.T) {
+	apiKey := NewAPIKey(testSM4Key, testSM3Salt)
+	client := NewClient(apiKey, WithBaseURL("https://api.example.com"))
+
+	req := &RechargeOrderRequest{
+		ActCode:     "FBG6vdYqGE4mGX7EH/woEg==",
+		GoodsCode:   "0001",
+		ActOrderNum: "0001",
+		OpenID:      "0001",
+		AppID:       "00001",
+	}
+
+	resp, err := client.RechargeOrder(context.Background(), req)
+	if err != nil {
+		t.Logf("RechargeOrder error: %v", err)
+		return
+	}
+	t.Logf("RechargeOrder response: %+v", resp)
+}
+
+func TestParseCallbackRequest(t *testing.T) {
+	// 模拟回调请求的构造和解析
+	apiKey := NewAPIKey(testSM4Key, testSM3Salt)
+	client := NewClient(apiKey)
+
+	// 构造回调业务数据
+	callbackReq := &CallbackRequest{
+		OrderNo:     "HM202509291010001",
+		ActOrderNum: "XY2025092910100001",
+		Status:      3,
+		Account:     "19912345678",
+	}
+
+	// 加密
+	plaintext, _ := json.Marshal(callbackReq)
+	encryptedData, _ := SM4Encrypt(apiKey.SM4Key, plaintext)
+	timestamp := "1700000000000"
+	sign := SM3Sign(apiKey.SM3Salt, timestamp+encryptedData)
+
+	// 构造HTTP请求（简化，实际测试需使用httptest）
+	// 这里仅验证加密解密和签名逻辑
+	t.Logf("Encrypted data: %s", encryptedData)
+	t.Logf("Sign: %s", sign)
+
+	// 验证解密
+	decrypted, err := SM4Decrypt(apiKey.SM4Key, encryptedData)
+	if err != nil {
+		t.Fatalf("decrypt error: %v", err)
+	}
+	t.Logf("Decrypted: %s", string(decrypted))
+}
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