add debug print func! fix #278

toolbox/debug_test.go

+package toolbox
+
+import (
+	"testing"
+)
+
+type mytype struct {
+	next *mytype
+	prev *mytype
+}
+
+func TestPrint(t *testing.T) {
+	Display("v1", 1, "v2", 2, "v3", 3)
+}
+
+func TestPrintPoint(t *testing.T) {
+	var v1 = new(mytype)
+	var v2 = new(mytype)
+
+	v1.prev = nil
+	v1.next = v2
+
+	v2.prev = v1
+	v2.next = nil
+
+	Display("v1", v1, "v2", v2)
+}
+
+func TestPrintString(t *testing.T) {
+	str := GetDisplayString("v1", 1, "v2", 2)
+	println(str)
+}