从一个循环中切换一个bool，然后用rust和gtk关闭Fn

我正试图用rust和gtk制作一款井字游戏，为了交换回合，当点击游戏按钮时，我会切换bool。由于rust/gtk集成，onclick事件在Fn闭包中运行，所以我不能直接编辑对bool的可变引用。

基于这篇文章，我从一个基本的bool移到了一个单元格中的bool，因为它具有内部可变性，允许它在闭包中变化。

然而，变量被移动到闭包中，在下一次循环/使用xturn时，我得到

--> src/main.rs:45:44
|
39 |     let xturn = Cell::new(true);
|         ----- move occurs because `xturn` has type `std::cell::Cell<bool>`, which does not implement the `Copy` trait
...
45 |             current_button.connect_clicked(move |current_button|{
|                                            ^^^^^^^^^^^^^^^^^^^^^ value moved into closure here, in previous iteration of loop
46 |                 if current_button.label().unwrap() == ""{
47 |                     if xturn.get() {
|                        ----- use occurs due to use in closure 

下方的代码

let game_grid: [[Button; 3];3] = [[new_game_button(), new_game_button(), new_game_button()],[new_game_button(), new_game_button(), new_game_button()],[new_game_button(), new_game_button(), new_game_button()]];
let xturn = Cell::new(true);
for i in 0..3{
for o in 0..3{
let current_button = &game_grid[i][o];
grid.attach(current_button, i.try_into().unwrap(), o.try_into().unwrap(), 1, 1);
current_button.connect_clicked(move |current_button|{
if current_button.label().unwrap() == ""{
if xturn.get() {
current_button.set_label("X");
} else{
current_button.set_label("O");
}; 
xturn.set(!xturn.get());
} else{
println!("This spot is taken! Go Again.");
}

});
}
}

通过添加&导致相同的初始错误消息

在关闭开始时取消移动会导致此错误

error[E0373]: closure may outlive the current function, but it borrows `xturn`, which is owned by the current function

完整代码

use std::cell::Cell;
use gtk4 as gtk;
use gtk::{prelude::*, Label};
use gtk::{Align, Application, ApplicationWindow, Button, Grid};
fn main() {
let app = Application::builder()
.application_id("org.beribus.tictactoe")
.build();
app.connect_activate(build_ui);
println!("Hello, world!");
app.run();
}
fn build_ui(app: &gtk::Application){
let window = ApplicationWindow::builder()
.application(app)
.default_width(360)
.default_height(360)
.title("GTK Tac Toe")
.build();   
let grid = Grid::builder()
.margin_top(10)
.margin_bottom(10)
.margin_start(10)
.margin_end(10)
.halign(gtk::Align::Center)
.valign(gtk::Align::Center)
.row_spacing(6)
.column_spacing(6)
.build();
window.set_child(Some(&grid));
let game_grid: [[Button; 3];3] = [[new_game_button(), new_game_button(), new_game_button()],[new_game_button(), new_game_button(), new_game_button()],[new_game_button(), new_game_button(), new_game_button()]];
let xturn = Cell::new(true);
for i in 0..3{
for o in 0..3{
let current_button = &game_grid[i][o];
grid.attach(current_button, i.try_into().unwrap(), o.try_into().unwrap(), 1, 1);
current_button.connect_clicked(move |current_button|{
if current_button.label().unwrap() == ""{
if xturn.get() {
current_button.set_label("X");
} else{
current_button.set_label("O");
}; 
&xturn.set(!&xturn.get());
} else{
println!("This spot is taken! Go Again.");
}

});
}
}
let text = Label::builder()
.label("woro")
.build();
if xturn.get(){
text.set_label("yoyooyo it's X's turn");
} else{
text.set_label("yoyooyo it's O's turn");
}
grid.attach(&text, 0,4,3,1);
let reset_button = Button::builder()
.halign(Align::Center)
.valign(Align::Center)
.label("Reset Game")
.build();
reset_button.connect_clicked(move |_|{
for i in 0..3{
for o in 0..3{
let current_button = &game_grid[i][o];
current_button.set_label("");
}
}
});
grid.attach(&reset_button, 0,3,3,1);
window.show();
}
fn new_game_button() -> Button{
let button = Button::builder()
.halign(Align::Center)
.valign(Align::Center)
.label("")
.width_request(90)
.height_request(90)
.build();
button
}