Question

您好我正在尝试解决色彩猜谜游戏任务。一切都很好，除了最后一部分，页面的颜色应该根据猜测的颜色改变。

非常感谢任何提示！

<!DOCTYPE html>
<html>
<head>
<title>JavaScript Guessing Color</title>
</head>
<body onload = "doGame()">

<script>

var colors = ["Azure", "Black", "Chocolate", "Cyan", "Grey", "Green", "Ivory", "Lavender", "Navy", "Olive", "Turquoise", "Yellow"];
var target;
var choice;
var numOfGame = 0;
var finished = false;


function doGame(){
    var randNum = Math.floor(Math.random() * colors.length);
    target = colors[randNum];
    alert(colors[randNum]);

    while (!finished) {
        choice = prompt("Please, guess the color. \n\n Possible colors are: " + colors + ".\n\n" + "What is the color?");
        numOfGame++;
        finished = checkGuess();
    }
}

function checkGuess() {
    if  ( colors.indexOf(choice) === -1) {
        alert("I don’t recognize that color!");
        return false;
    } else  if (choice > target) {
        alert("Your color is alphabetically higher than mine. Please, try again");
        return false;
    } else if (choice < target) {
        alert("Your color is alphabetically lower than mine. Please, try again");
        return false; 
    } else {
        alert("You won! Number of games played is " + numOfGame);
        return true;
        document.body.style.backgroundColor = target;
    }
}
</script>
</body>
</html>

Answer 1

在更改颜色之前从checkGuess（）返回。所以，把

document.body.style.backgroundColor = target;

之前的

return true;

检查这个小提琴 - https://jsfiddle.net/anuranpal/x4p7grtu/

JS颜色猜测游戏 - 背景颜色变化

1 个答案: