SwiftUI—使用SecureField密文输入框接收用户的密码

struct ContentView : View {
    @State var password : String
    var body: some View {
        VStack{
            Text("Your password is \(password)!")
            SecureField("Your password", text: $password) {
                print("Your password is \(self.password)!")
            } //密文输入框，并设置指定占位符，同时设置它的text的值为password属性的值，并通过美元符号和password属性进行绑定包装
            .textFieldStyle(RoundedBorderTextFieldStyle())
        }
        .padding()
    }
}