我正在为一款机器人游戏做一些初步编码。
我用 JavaScript 编写了一个简短的程序来跟踪游戏中的回合和玩家。 我可以更新轮次，返回轮到谁没问题。
我想使用数组来保存有关玩家的信息。我正在学习，所以现在我使用的是只有 2 个元素的数组。
名字有player1_data,player2_data等，我想找出数组元素0的内容，所以变成player1_data[0]，这样就可以了。
如果我输入这个，一切都很好，我的元素会返回给我。
但是，如果我通过“player”+ current_player +“_data[”+ element +“]”组合数组信息，那么它看起来不错，但根本不起作用。
它只是一串字符，而不是我手动输入时得到的实际数组元素请求!
问题是什么？
<!DOCTYPE HTML>
<html>
<head>
</head>
<body>
<button class="button" onclick="vardisplay(), updateturn() ">SHOW VARIABLES</button>
<p id="para1">false</p>
<p id="para2">2</p>
<p id="para3">2</p>
<p id="para4">2</p>
<p id="para5">2</p>
<p id="para6">2</p>
<p id="para7">2</p>
<p id="para8">2</p>
<script>
var ifselect = 0
var current_turn = 0
var last_turn = 0
var players_in_game = 5
var current_player = 1
var current_robot = 123
var player_id = "player" + current_player + "_data";
var arrayselector = 0
var player_array_display = player_id + "[" + arrayselector + "]";
var player1_data = ["dave", current_robot];
var player2_data = ["kim", current_robot];
var player3_data = ["nigel", current_robot];
var player4_data = ["bob", current_robot];
function updateturn() {
if (current_player > players_in_game - 1) {
current_player = 1
current_turn = current_turn + 1
} else {
current_player = current_player + 1;
player_id = "player" + current_player + "_data";
player_array_display = player_id + "[" + arrayselector + "]";
}
}
function vardisplay() {
document.getElementById("para1").innerHTML = "random stuff";
document.getElementById("para2").innerHTML = "players_in_game: " + players_in_game;
document.getElementById("para3").innerHTML = "current_turn: " + current_turn;
document.getElementById("para4").innerHTML = "current_player: " + current_player;
document.getElementById("para5").innerHTML = "current_robot: " + current_robot;
document.getElementById("para6").innerHTML = "player_id: " + player_id;
document.getElementById("para7").innerHTML = "player_array_display: " + player_array_display;
document.getElementById("para8").innerHTML = player2_data[0];
}
</script>
</body>
</html>
最佳答案
I want to use arrays to hold info about players. Im learning at the moment so for now I'm using an array with only 2 elements. The names are player1_data, player2_data etc.
不要这样做。不是对关系基于命名约定的类似命名的变量进行分组，而是使用语言提供的集合对值进行分组。
var player_data_for_all_players = [player1_data, player2_data];
将允许你做
player_data_for_all_players[player_index][array_selector]
或
var player_data_by_name = {
'dave': current_robot,
...
};
它允许您使用在调试控制台中更容易解释的(唯一)值来识别玩家。
关于javascript - HTML JS 组装数组名称工作正常但随后打印为 "string"而不是实际作业，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/24430758/