Javascript：函数内部变量的全局化

因此，我有以下代码：

var func1 = function() {
    var userChoose = prompt("Choose a number from 1-10. If you choose the same number as the computer, you win!");
    func2();
};

var func2 = function() {
    computerChoose = Math.random();
    computerChoose = Math.round(computerChoose*10)/10;
    if (userChoose === computerChoose) {
        console.log("You won! The computer chose the number " + userChoice + " just like you! Good job!");
    } else if (userChoose > 10) {
        console.log("I'm sorry, you wrote something above 10. Try again.");
    } else {
        console.log("Sorry! The computer got " + computerChoose + 
        " and you got " + userChoose + ". Sorry!");
    }
};

func1();

我的问题是，一旦我输入一个数字，比如说5，它就会保持这个数字不变，每次我运行代码时，它都会说“对不起！计算机得到了x，而你得到了5”，即使我输入了3

如果我错了，请纠正我，但我相信会发生这种情况，因为我试图更改函数中的变量。我的主要问题是如何全球化函数中的变量，以便在不同的函数中使用和修改它

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多谢各位

调用函数时可以传递值。试试这个：

var func1 = function() {
    var userChoose = prompt("Choose a number from 1-10. If you choose the same number as the computer, you win!");
    func2(userChoose);
};

var func2 = function(userChoose ) {
    computerChoose = Math.random();
    computerChoose = Math.round(computerChoose*10)/10;
    if (userChoose === computerChoose) {
        console.log("You won! The computer chose the number " + userChoice + " just like you! Good job!");
    } else if (userChoose > 10) {
        console.log("I'm sorry, you wrote something above 10. Try again.");
    } else {
        console.log("Sorry! The computer got " + computerChoose + 
        " and you got " + userChoose + ". Sorry!");
    }
};

func1();

演示