update OpenHarmony 2.0 Canary

example/streamWrite/streamWrite.cpp

@@ -0,0 +1,22 @@
+#include "json/json.h"
+#include <iostream>
+/** \brief Write the Value object to a stream.
+ * Example Usage:
+ * $g++ streamWrite.cpp -ljsoncpp -std=c++11 -o streamWrite
+ * $./streamWrite
+ * {
+ *     "Age" : 20,
+ *     "Name" : "robin"
+ * }
+ */
+int main() {
+  Json::Value root;
+  Json::StreamWriterBuilder builder;
+  Json::StreamWriter* writer(builder.newStreamWriter());
+
+  root["Name"] = "robin";
+  root["Age"] = 20;
+  writer->write(root, &std::cout);
+  delete writer;
+  return EXIT_SUCCESS;
+}