Practice sync map and xml

Signed-off-by: Bruce <weichou1229@gmail.com>

playground/panic/trypanic.go

@@ -0,0 +1,10 @@
+package trypanic
+
+import (
+	"fmt"
+)
+
+func Try() {
+	var test *string
+	fmt.Println(*test)
+}

playground/parse/parseInt_test.go

@@ -0,0 +1,14 @@
+package parse
+
+import (
+	"fmt"
+	"strconv"
+	"testing"
+)
+
+func TestParseInt(t *testing.T) {
+	var _, err = strconv.ParseInt("127", 0, 8)
+	if err != nil {
+		fmt.Println(err)
+	}
+}

playground/pointer/pointer_test.go

@@ -18,3 +18,9 @@ func TestBasic(t *testing.T) {
 	fmt.Println(*address2)
 
 }
+
+func TestPointer(t *testing.T) {
+	var test *string = new(string)
+	*test = "123"
+	fmt.Println(test)
+}

playground/syncmap/syncmap_test.go

@@ -0,0 +1,52 @@
+package syncmap
+
+import (
+	"fmt"
+	"sync"
+	"testing"
+)
+
+type Order struct {
+	Id int
+}
+
+func TestSync(t *testing.T) {
+	var waitGroup sync.WaitGroup
+	waitGroup.Add(10)
+	var cache sync.Map
+
+	for i := 0; i < 10; i++ {
+		go func() {
+			cache.Store("test", &Order{})
+			order, _ := cache.Load("test")
+			o := order.(*Order)
+			fmt.Println(o)
+			waitGroup.Done()
+		}()
+	}
+	waitGroup.Wait()
+}
+
+func TestSync2(t *testing.T) {
+	var cache sync.Map
+
+	cache.Store("test", nil)
+
+	if order, ok := cache.Load("test"); ok && order != nil {
+		fmt.Println(order)
+	} else {
+		fmt.Println("not exist")
+	}
+}
+
+func TestSync3(t *testing.T) {
+	var cache sync.Map
+	orders := make([]Order, 2)
+
+	cache.Store("test2", orders[0])
+	cache.Store("test", orders[0])
+
+	order, ok := cache.Load("test")
+	fmt.Println(ok, order)
+
+}

playground/xml/xml_test.go

@@ -0,0 +1,63 @@
+package xml
+
+import (
+	"fmt"
+	xj "github.com/basgys/goxml2json"
+	"github.com/buger/jsonparser"
+	"os"
+	"testing"
+)
+
+type Person struct {
+	Name string `xml:"name"`
+}
+
+func TestParse(t *testing.T) {
+	xmlFile, err := os.Open("2018Q1.xml")
+	if err != nil {
+		fmt.Println(err)
+		return
+	}
+	defer xmlFile.Close()
+	json, err := xj.Convert(xmlFile)
+	if err != nil {
+		fmt.Println(err)
+		return
+	}
+
+	fmt.Println(json.String())
+
+	//err = jsonparser.ObjectEach(json.Bytes(), objectEach,"xbrl")
+	//if err != nil {
+	//	fmt.Println(err)
+	//	return
+	//}
+
+	// 營業收入
+	var revenue string
+	_, err = jsonparser.ArrayEach(json.Bytes(), func(value []byte, dataType jsonparser.ValueType, offset int, err error) {
+		revenue, err = jsonparser.GetString(value, "#content")
+		fmt.Println(revenue)
+	}, "xbrl", "Revenue")
+	if err != nil {
+		fmt.Println(err)
+		return
+	}
+}
+
+func parse(b []byte) {
+	err := jsonparser.ObjectEach(b, objectEach, "xbrl")
+	if err != nil {
+		fmt.Println(err)
+		return
+	}
+}
+
+func objectEach(key []byte, value []byte, dataType jsonparser.ValueType, offset int) error {
+	fmt.Printf("[Key]: [%s]\n Value: '%s'\n Type: %s\n", string(key), string(value), dataType)
+	return nil
+}
+
+func arrayEach(value []byte, dataType jsonparser.ValueType, offset int, err error) {
+	fmt.Printf("Array Value: '%s'\n Type: %s\n", string(value), dataType)
+}