在方法中获取EnvironmentObject属性

struct ContentView: View {
    @EnvironmentObject var userData: UserData
    
    var body: some View {
        VStack {
            Text("User Name: \(userData.userName)")
            Button(action: {
                self.updateUserName()
            }) {
                Text("Update User Name")
            }
        }
    }
    
    func updateUserName() {
        // 在方法中获取EnvironmentObject属性
        let userName = userData.userName
        // 执行其他操作...
    }
}