Update 'README.md'

README.md

@@ -1,3 +1,50 @@
 # Werkzeug
 
-WSGI工具
+WSGI工具
+
+## Usage
+
+```
+pip install Werkzeug
+
+```
+
+定义多路由：
+```
+from werkzeug.wrappers import Request, Response
+from werkzeug.serving import run_simple
+from werkzeug.routing import Map, Rule
+
+# 定义路由处理函数
+def hello_world(request):
+    return Response('Hello, World!', content_type='text/plain')
+
+def greet_user(request, username):
+    return Response(f'Hello, {username}!', content_type='text/plain')
+
+# 创建 URL 映射规则
+url_map = Map([
+    Rule('/', endpoint='hello_world'),
+    Rule('/user/<username>', endpoint='greet_user')
+])
+
+# 创建应用程序
+def application(environ, start_response):
+    request = Request(environ)
+    adapter = url_map.bind_to_environ(environ)
+    endpoint, values = adapter.match()
+    
+    if endpoint == 'hello_world':
+        response = hello_world(request)
+    elif endpoint == 'greet_user':
+        response = greet_user(request, values['username'])
+    else:
+        response = Response('Not Found', status=404)
+
+    return response(environ, start_response)
+
+# 运行 Web 服务器
+if __name__ == '__main__':
+    run_simple('localhost', 8080, application)
+
+```