var mineArray, //地雷數(shù)組 
lastNum, //剩余雷數(shù) 
countNum, //未被揭開(kāi)的方塊數(shù) 
inGame = 0, //游戲狀態(tài)，0為結(jié)束，1為進(jìn)行中，2為初始化完畢但未開(kāi)始 
startTime; //開(kāi)始時(shí)間 
//以下操作1表示揭開(kāi)一個(gè)方塊，操作2表示標(biāo)記一個(gè)小旗，操作3表示標(biāo)記一個(gè)問(wèn)號(hào)，操作4表示若某個(gè)方塊周圍的地雷全都標(biāo)記完，則將其周圍剩下的方塊挖開(kāi) 
$(function(){ 
$('#main').mouseup(function(e) { 
var clicked = $(e.target), 
id = clicked.attr('id'), 
cX = parseInt(id.substring(1, id.indexOf('-'))), //所點(diǎn)擊方格的X坐標(biāo) 
cY = parseInt(id.substring(id.indexOf('-') + 1)); //所點(diǎn)擊方格的Y坐標(biāo) 
if(inGame == 1) { 
if(e.which == 1) { 
if(clicked.hasClass('hidden') && !clicked.hasClass('flag')) { 
openBlock(cX,cY); //左鍵點(diǎn)擊未揭開(kāi)且未插旗方塊即執(zhí)行操作1 
} else if(!clicked.hasClass('hidden')) { 
openNearBlock(cX,cY); //由于同時(shí)點(diǎn)擊左右鍵實(shí)現(xiàn)起來(lái)比較麻煩，所以改成用點(diǎn)擊左鍵實(shí)現(xiàn)操作4 
} 
} else if(e.which == 3 && clicked.hasClass('hidden')) { //右鍵點(diǎn)擊操作2，如果允許使用問(wèn)號(hào)標(biāo)記，則可執(zhí)行操作3 
if(clicked.hasClass('flag')) { 
clicked.removeClass('flag'); 
if($('#check').attr('checked')) clicked.addClass('check'); 
lastNum ++; 
countNum ++; 
} else if(clicked.hasClass('check')) { 
clicked.removeClass('check'); 
} else { 
clicked.addClass('flag'); 
lastNum --; 
countNum --; 
} 
$('#lastnum').text(lastNum); 
} 
if(lastNum == countNum) endGame(1); //因?yàn)樽詈笫Ｏ碌姆綁K均為雷時(shí)應(yīng)直接結(jié)束游戲，因此設(shè)置為剩余雷數(shù)和未被揭開(kāi)的方塊數(shù)相等的時(shí)候結(jié)束游戲 
} else if(inGame == 2) { 
if(e.which == 1) { //初始化完畢后只允許點(diǎn)擊左鍵開(kāi)始游戲 
openBlock(cX,cY); 
inGame = 1; 
var now = new Date(); 
startTime = now.getTime(); 
timer(); 
} 
} 
}); 
$('#main').bind('contextmenu', function(){ return false; }); //阻止默認(rèn)右擊事件 
}); 
//初始化 
function init(x, y, mine) { 
countNum = x * y; 
inGame = 2; 
lastNum = mine; 
mineArray = new Array(y + 2); 
$.each(mineArray, function(key) { 
mineArray[key] = new Array(x + 2); 
}); 
for(var i = 1; i <= y; i ++) { 
for(var j = 1; j <= x; j ++) { 
mineArray[i][j] = 0; 
} 
} 
while(mine > 0) { //隨機(jī)布雷，-1為有雷 
var i = Math.ceil(Math.random() * y); 
var j = Math.ceil(Math.random() * x); 
if(mineArray[i][j] != -1) { 
mineArray[i][j] = -1; 
mine --; 
} 
} 
for(var i = 1; i <= y; i ++) { //遍歷地雷數(shù)組，統(tǒng)計(jì)每個(gè)格子四周地雷的數(shù)量 
for(var j = 1; j <= x; j ++) { 
if(mineArray[i][j] != -1) { 
if(i > 1 && j > 1 && mineArray[i - 1][j - 1] == -1) mineArray[i][j] ++; 
if(i > 1 && mineArray[i - 1][j] == -1) mineArray[i][j] ++; 
if(i > 1 && j < x && mineArray[i - 1][j + 1] == -1) mineArray[i][j] ++; 
if(j < x && mineArray[i][j + 1] == -1) mineArray[i][j] ++; 
if(i < y && j < x && mineArray[i + 1][j + 1] == -1) mineArray[i][j] ++; 
if(i < y && mineArray[i + 1][j] == -1) mineArray[i][j] ++; 
if(i < y && j > 1 && mineArray[i + 1][j - 1] == -1) mineArray[i][j] ++; 
if(j > 1 && mineArray[i][j - 1] == -1) mineArray[i][j] ++; 
} 
} 
} 
var block = ''; 
for(var i = 1, row = mineArray.length - 1; i < row; i ++) { 
for(var j = 1, col = mineArray[0].length - 1; j < col; j ++) { 
block += '<div id="b' + i + '-' + j + '" style="left:' + (j - 1) * 20 + 'px;top:' + (i - 1) * 20 + 'px;" class="hidden"></div>'; 
} 
} 
$('#main').html(block).width(x * 20 + 1).height(y * 20 + 1).show(); //繪圖 
$('#warning').html(''); 
$('#submenu').show(); 
$('#lastnum').text(lastNum); 
} 
//揭開(kāi)方塊 
function openBlock(x, y) { 
var current = $('#b' + x + '-' + y); 
if(mineArray[x][y] == -1) { 
if(inGame == 1) { //觸雷時(shí)如游戲進(jìn)行中，則失敗結(jié)束游戲 
current.addClass('cbomb'); 
endGame(); 
} else if(inGame == 2) { //如游戲初始化后還未開(kāi)始，則重新初始化地雷陣，再揭開(kāi)此方塊，以保證第一次點(diǎn)擊不觸雷 
init(mineArray[0].length - 2, mineArray.length - 2, lastNum); 
openBlock(x, y); 
} else { //游戲結(jié)束時(shí)需揭開(kāi)全部方塊，標(biāo)記地雷位置 
if(!current.hasClass('flag')) current.addClass('bomb'); 
} 
} else if(mineArray[x][y] > 0) { 
if(current.hasClass('flag')) { //若在無(wú)雷的方塊上標(biāo)記了小旗，如果周圍的廣場(chǎng)執(zhí)行操作4時(shí)波及到此方塊，則觸發(fā)失敗結(jié)束游戲 
current.addClass('wrong'); 
if(inGame) endGame(); 
} else { 
current.html(mineArray[x][y]).addClass('num' + mineArray[x][y]).removeClass('hidden'); //顯示周邊的地雷數(shù)量 
if(current.hasClass('check')) current.removeClass('check'); 
if(inGame) countNum --; 
} 
} else { 
if(current.hasClass('flag')) { //同上 
current.addClass('wrong'); 
if(inGame) endGame(); 
} else { 
current.removeClass('hidden'); 
if(current.hasClass('check')) current.removeClass('check'); 
if(inGame) { //點(diǎn)擊到周邊無(wú)雷的方塊時(shí)，自動(dòng)揭開(kāi)周圍方塊 
countNum --; 
var row = mineArray.length - 2, col = mineArray[0].length - 2; 
if(x > 1 && y > 1 && $('#b' + (x - 1) + '-' + (y - 1)).hasClass('hidden')) openBlock(x - 1, y - 1); 
if(x > 1 && $('#b' + (x - 1) + '-' + y).hasClass('hidden')) openBlock(x - 1, y); 
if(x > 1 && y < col && $('#b' + (x - 1) + '-' + (y + 1)).hasClass('hidden')) openBlock(x - 1, y + 1); 
if(y < col && $('#b' + x + '-' + (y + 1)).hasClass('hidden')) openBlock(x, y + 1); 
if(x < row && y < col && $('#b' + (x + 1) + '-' + (y + 1)).hasClass('hidden')) openBlock(x + 1, y + 1); 
if(x < row && $('#b' + (x + 1) + '-' + y).hasClass('hidden')) openBlock(x + 1, y); 
if(x < row && y > 1 && $('#b' + (x + 1) + '-' + (y - 1)).hasClass('hidden')) openBlock(x + 1, y - 1); 
if(y > 1 && $('#b' + x + '-' + (y - 1)).hasClass('hidden')) openBlock(x, y - 1); 
} 
} 
} 
} 
//揭開(kāi)格子鄰近確認(rèn)無(wú)雷的方塊 
function openNearBlock(x, y) { 
var flagNum = 0, hiddenNum = 0; 
for(i = x - 1; i < x + 2; i ++) { 
for(j = y - 1; j < y + 2; j ++) { 
if(mineArray[i][j] != undefined) { 
if($('#b' + i + '-' + j).hasClass('flag')) flagNum ++; //統(tǒng)計(jì)方塊周圍的旗幟數(shù)和未揭開(kāi)的方塊數(shù) 
if($('#b' + i + '-' + j).hasClass('hidden')) hiddenNum ++; 
} 
} 
} 
if(flagNum == mineArray[x][y] && hiddenNum > flagNum) { //旗幟數(shù)和雷數(shù)相等且有未揭開(kāi)方塊且未插旗的方塊時(shí)，則揭開(kāi)它 
for(i = x - 1; i < x + 2; i ++) { 
for(j = y - 1; j < y + 2; j ++) { 
if(mineArray[i][j] >= 0 && $('#b' + i + '-' + j).hasClass('hidden')) openBlock(i, j); 
} 
} 
} 
} 
//計(jì)時(shí) 
function timer(){ 
if(inGame == 1) { //只在游戲進(jìn)行中計(jì)時(shí) 
var now = new Date(), 
ms = now.getTime(); 
$('#time').text(Math.ceil((ms - startTime) / 1000)); 
if(inGame == 1) setTimeout(function() { timer(); }, 500); 
} else if(inGame == 2) { 
$('#time').text('0'); 
} 
} 
//結(jié)束游戲 
function endGame(isWin) { 
inGame = 0; 
for(var i = 1, row = mineArray.length - 1; i < row; i ++) { 
for(var j = 1, col = mineArray[0].length - 1; j < col; j ++) { 
if(isWin) { 
if($('#b' + i + '-' + j).hasClass('hidden') && !$('#b' + i + '-' + j).hasClass('flag')) $('#b' + i + '-' + j).addClass('flag'); 
lastNum = 0; 
$('#lastnum').text(lastNum); 
} else { 
openBlock(i, j); 
} 
} 
} 
$('#warning').text(isWin ? 'You Win!' : 'You Lose!'); 
} 

<div id="menu"> 
<a href="javascript:;" onclick="init(10,10,10);">初級(jí)</a> 
<a href="javascript:;" onclick="init(16,16,40);">中級(jí)</a> 
<a href="javascript:;" onclick="init(30,16,99);">高級(jí)</a> 
<input type="checkbox" id="check" /><label for="check">是否使用標(biāo)記(?)</label> 
</div> 
<div id="submenu"> 
剩余雷數(shù)：<span id="lastnum"></span> 
時(shí)間：<span id="time"></span>秒 
<span id="warning"></span> 
</div> 
<div id="main"></div> 

body{background:#fff;font-size:14px;} 
#submenu{display:none;} 
#warning{color:#ff0000;} 
#main{background:#ddd;border:1px solid #888;display:none;position:relative;} 
#main div{border:1px solid #888;font-weight:bold;height:19px;height:21px\9;line-height:18px;cursor:default;position:absolute;text-align:center;width:19px;width:21px\9;} 
.hidden{background:url(mine.gif) 0 0;} 
.flag{background:url(mine.gif) -19px 0;} 
.check{background:url(mine.gif) -38px 0;} 
.bomb{background:url(mine.gif) -57px 0;} 
.cbomb{background:url(mine.gif) -57px 0 #ff0000;} 
.wrong{background:url(mine.gif) -76px 0;} 
.num1{color:#0000ff;} 
.num2{color:#008000;} 
.num3{color:#ff0000;} 
.num4{color:#000080;} 
.num5{color:#800000;} 
.num6{color:#008080;} 
.num7{color:#000000;} 
.num8{color:#808080;}