在SwiftUI中，如何在视图中赋值变量？

import SwiftUI

struct ContentView: View {
    @State private var name: String = ""

    var body: some View {
        VStack {
            TextField("请输入姓名", text: $name)
                .padding()
            
            Text("你好，\(name)！")
                .font(.title)
        }
    }
}

struct ContentView_Previews: PreviewProvider {
    static var previews: some View {
        ContentView()
    }
}