{"id":934,"date":"2010-10-01T12:42:43","date_gmt":"2010-10-01T12:42:43","guid":{"rendered":"http:\/\/enjoyasp.net\/?p=934"},"modified":"2010-10-30T07:28:13","modified_gmt":"2010-10-30T07:28:13","slug":"%e5%9f%ba%e6%9c%ac%e8%af%ad%e6%b3%95","status":"publish","type":"post","link":"https:\/\/enjoyasp.net\/index.php\/2010\/10\/01\/%e5%9f%ba%e6%9c%ac%e8%af%ad%e6%b3%95\/","title":{"rendered":"\u57fa\u672c\u8bed\u6cd5"},"content":{"rendered":"

1,$:$(“a”) \u662f\u4e00\u4e2ajQuery\u9009\u62e9\u5668(selector),\u5728\u8fd9\u91cc\uff0c\u5b83\u9009\u62e9\u6240\u6709\u7684a\u6807\u7b7e\uff0c\u5f97\u5230\u4e00\u4e2a\u5bf9\u8c61\u96c6\u5408\uff0c$\u53f7\u662f jQuery \u201c\u7c7b\u201d(jQuery “class”)\u7684\u4e00\u4e2a\u522b\u79f0\uff0c\u56e0\u6b64$()\u6784\u9020\u4e86\u4e00\u4e2a\u65b0\u7684jQuery \u5bf9\u8c61(jQuery object)\u3002\u76f8\u5f53\u4e8edocument.getElementsByTagName(“a”)\uff0c\u8fd9\u662f\u4e00\u4e2a\u51fd\u6570\uff01\uff0c$\u53f7\u662f jQuery \u201c\u7c7b\u201d(jQuery “class”)\u7684\u4e00\u4e2a\u522b\u79f0\uff0c\u56e0\u6b64$()\u6784\u9020\u4e86\u4e00\u4e2a\u65b0\u7684jQuery \u5bf9\u8c61(jQuery object)\u3002\u51fd\u6570 click() \u662f\u8fd9\u4e2ajQuery\u5bf9\u8c61\u7684\u4e00\u4e2a\u65b9\u6cd5\uff0c\u5b83\u7ed1\u5b9a\u4e86\u4e00\u4e2a\u5355\u51fb\u4e8b\u4ef6\u5230\u6240\u6709\u9009\u4e2d\u7684\u6807\u7b7e(\u8fd9\u91cc\u662f\u6240\u6709\u7684a\u6807\u7b7e),\u5e76\u5728\u4e8b\u4ef6\u89e6\u53d1\u65f6\u6267\u884c\u4e86\u5b83\u6240\u63d0\u4f9b\u7684alert\u65b9\u6cd5.
\n\uff081\uff09\uff1a$(“div > p”) \uff1a\u627ediv\u4e0b\u7684p\u5143\u7d20\uff0c\u5982<\/p>\n

one<\/p>\n

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two<\/p>\n<\/div>\n

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\n\uff1a$(“.red_test,#btn_5”)<\/p>\n

2, \u6267\u884c\u65b9\u6cd5\uff1a\u901a\u8fc7$\u5f97\u5230\u5143\u7d20\uff0c\u5728\u65b9\u6cd5\u4e2d\u76f4\u63a5\u5199function: $(“#orderedlist”).click( function(){$(“#orderedlist”).addClass(“red”);} )
\n\u6bcf\u4e00\u4e2aonXXX\u4e8b\u4ef6\u90fd\u6709\u6548\uff0c\u5982onclick,onchange,onsubmit\u7b49\uff0c\u90fd\u6709jQuery\u7b49\u4ef7\u8868\u793a\u65b9\u6cd5\uff08onXXX\uff0c\u6240\u4ee5\u90fd\u6539\u6210\u4e86XXX\uff0c\u53bb\u6389\u4e86on\uff09<\/p>\n

3,\u4e3a\u5f97\u5230\u7684\u5143\u7d20\u589e\u52a0CSS\u64cd\u4f5c\uff1a
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\n\u6216\uff1a$(this).css(“color”,”blue”);
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\n\uff083\uff09\uff1aheight( )\uff1a\u5f97\u5230\u5bbd\u5ea6\uff0cheight(100);\u8bbe\u7f6e\u5bbd\u5ea6 \u7c7b\u4f3c\u8fd8\u6709\uff1awidth( )\uff0c html()\uff08\u5f97\u5230\u5143\u7d20\u5185\u90e8html\uff09
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\n$(“.wrdLatest1:last”).attr(“id”)
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4,\u904d\u5386\u5143\u7d20\uff1aeach:$(“#orderedlist”).find(“li”).each(function(i) { $(this).html( $(this).html() + ” BAM! ” + i ); \/\/$(“#orderedlist”).find(“li”)\u662f\u4e00\u4e2a\u96c6\u5408\uff0c\u904d\u5386\u4e4b
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5\uff0c\u67e5\u627e\u5143\u7d20\uff1afind,filter(),not() : $(“li”).not(“:has(ul)”).css(“border”, “1px solid black”);
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6,jQuery\u5e38\u7528\u6280\u5de7<\/p>\n

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2\u3001jQuery\u5bf9\u8c61\u4e0edom\u5bf9\u8c61\u7684\u8f6c\u6362<\/p>\n

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\u5982\uff1a$(\u201d#msg\u201d)[0]\uff0c$(\u201ddiv\u201d).eq(1)[0]\uff0c$(\u201ddiv\u201d).get()[1]\uff0c$(\u201dtd\u201d)[5]\u8fd9\u4e9b\u90fd\u662fdom\u5bf9\u8c61\uff0c\u53ef\u4ee5\u4f7f\u7528dom\u4e2d\u7684\u65b9\u6cd5\uff0c\u4f46\u4e0d\u80fd\u518d\u4f7f\u7528Jquery\u7684\u65b9\u6cd5\u3002<\/p>\n

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\n8\u3001\u64cd\u4f5c\u5143\u7d20\u7684\u6837\u5f0f
\n\u4e3b\u8981\u5305\u62ec\u4ee5\u4e0b\u51e0\u79cd\u65b9\u5f0f\uff1a<\/p>\n

$(\u201d#msg\u201d).css(\u201dbackground\u201d); \/\/\u8fd4\u56de\u5143\u7d20\u7684\u80cc\u666f\u989c\u8272$(\u201d#msg\u201d).css(\u201dbackground\u201d,\u201d#ccc\u201d) \/\/\u8bbe\u5b9a\u5143\u7d20\u80cc\u666f\u4e3a\u7070\u8272$(\u201d#msg\u201d).height(300); $(\u201d#msg\u201d).width(\u201d200\u2033); \/\/\u8bbe\u5b9a\u5bbd\u9ad8$(\u201d#msg\u201d).css({ color: \u201cred\u201d, background: \u201cblue\u201d });\/\/\u4ee5\u540d\u503c\u5bf9\u7684\u5f62\u5f0f\u8bbe\u5b9a\u6837\u5f0f$(\u201d#msg\u201d).addClass(\u201dselect\u201d); \/\/\u4e3a\u5143\u7d20\u589e\u52a0\u540d\u79f0\u4e3aselect\u7684class$(\u201d#msg\u201d).removeClass(\u201dselect\u201d); \/\/\u5220\u9664\u5143\u7d20\u540d\u79f0\u4e3aselect\u7684class$(\u201d#msg\u201d).toggleClass(\u201dselect\u201d); \/\/\u5982\u679c\u5b58\u5728\uff08\u4e0d\u5b58\u5728\uff09\u5c31\u5220\u9664\uff08\u6dfb\u52a0\uff09\u540d\u79f0\u4e3aselect\u7684class<\/p>\n

9\u3001\u5b8c\u5584\u7684\u4e8b\u4ef6\u5904\u7406\u529f\u80fd
\njQuery\u5df2\u7ecf\u4e3a\u6211\u4eec\u63d0\u4f9b\u4e86\u5404\u79cd\u4e8b\u4ef6\u5904\u7406\u65b9\u6cd5\uff0c\u6211\u4eec\u65e0\u9700\u5728html\u5143\u7d20\u4e0a\u76f4\u63a5\u5199\u4e8b\u4ef6\uff0c\u800c\u53ef\u4ee5\u76f4\u63a5\u4e3a\u901a\u8fc7jquery\u83b7\u53d6\u7684\u5bf9\u8c61\u6dfb\u52a0\u4e8b\u4ef6\u3002$(\u201d#msg\u201d).click(function(){alert(\u201dgood\u201d)}) \/\/\u4e3a\u5143\u7d20\u6dfb\u52a0\u4e86\u5355\u51fb\u4e8b\u4ef6$(\u201dp\u201d).click(function(i){this.style.color= [‘#f00′,’#0f0′,’#00f’][ i ]})\/\/\u4e3a\u4e09\u4e2a\u4e0d\u540c\u7684p\u5143\u7d20\u5355\u51fb\u4e8b\u4ef6\u5206\u522b\u8bbe\u5b9a\u4e0d\u540c\u7684\u5904\u7406
\njQuery\u4e2d\u51e0\u4e2a\u81ea\u5b9a\u4e49\u7684\u4e8b\u4ef6\uff1a
\n(1)hover(fn1,fn2)\uff1a\u4e00\u4e2a\u6a21\u4eff\u60ac\u505c\u4e8b\u4ef6\uff08\u9f20\u6807\u79fb\u52a8\u5230\u4e00\u4e2a\u5bf9\u8c61\u4e0a\u9762\u53ca\u79fb\u51fa\u8fd9\u4e2a\u5bf9\u8c61\uff09\u7684\u65b9\u6cd5\u3002\u5f53\u9f20\u6807\u79fb\u52a8\u5230\u4e00\u4e2a\u5339\u914d\u7684\u5143\u7d20\u4e0a\u9762\u65f6\uff0c\u4f1a\u89e6\u53d1\u6307\u5b9a\u7684\u7b2c\u4e00\u4e2a\u51fd\u6570\u3002\u5f53\u9f20\u6807\u79fb\u51fa\u8fd9\u4e2a\u5143\u7d20\u65f6\uff0c\u4f1a\u89e6\u53d1\u6307\u5b9a\u7684\u7b2c\u4e8c\u4e2a\u51fd\u6570\u3002<\/p>\n

\/\/\u5f53\u9f20\u6807\u653e\u5728\u8868\u683c\u7684\u67d0\u884c\u4e0a\u65f6\u5c06class\u7f6e\u4e3aover\uff0c\u79bb\u5f00\u65f6\u7f6e\u4e3aout\u3002$(\u201dtr\u201d).hover(function(){$(this).addClass(\u201dover\u201d);},function(){$(this).addClass(\u201dout\u201d);});
\n\uff082\uff09ready(fn):\u5f53DOM\u8f7d\u5165\u5c31\u7eea\u53ef\u4ee5\u67e5\u8be2\u53ca\u64cd\u7eb5\u65f6\u7ed1\u5b9a\u4e00\u4e2a\u8981\u6267\u884c\u7684\u51fd\u6570\u3002<\/p>\n

$(document).ready(function(){alert(\u201dLoad Success\u201d)})\/\/\u9875\u9762\u52a0\u8f7d\u5b8c\u6bd5\u63d0\u793a\u201cLoad Success\u201d,\u76f8\u5f53\u4e8eonload\u4e8b\u4ef6\u3002\u4e0e$(fn)\u7b49\u4ef7
\n\uff083\uff09toggle(evenFn,oddFn): \u6bcf\u6b21\u70b9\u51fb\u65f6\u5207\u6362\u8981\u8c03\u7528\u7684\u51fd\u6570\u3002\u5982\u679c\u70b9\u51fb\u4e86\u4e00\u4e2a\u5339\u914d\u7684\u5143\u7d20\uff0c\u5219\u89e6\u53d1\u6307\u5b9a\u7684\u7b2c\u4e00\u4e2a\u51fd\u6570\uff0c\u5f53\u518d\u6b21\u70b9\u51fb\u540c\u4e00\u5143\u7d20\u65f6\uff0c\u5219\u89e6\u53d1\u6307\u5b9a\u7684\u7b2c\u4e8c\u4e2a\u51fd\u6570\u3002\u968f\u540e\u7684\u6bcf\u6b21\u70b9\u51fb\u90fd\u91cd\u590d\u5bf9\u8fd9\u4e24\u4e2a\u51fd\u6570\u7684\u8f6e\u756a\u8c03\u7528\u3002<\/p>\n

\/\/ \u6bcf\u6b21\u70b9\u51fb\u65f6\u8f6e\u6362\u6dfb\u52a0\u548c\u5220\u9664\u540d\u4e3aselected\u7684class\u3002$(\u201dp\u201d).toggle(function() {$(this).addClass(\u201dselected\u201d);},function(){$(this).removeClass(\u201dselected\u201d);});
\n\uff084\uff09trigger(eventtype): \u5728\u6bcf\u4e00\u4e2a\u5339\u914d\u7684\u5143\u7d20\u4e0a\u89e6\u53d1\u67d0\u7c7b\u4e8b\u4ef6\u3002
\n\u4f8b\u5982\uff1a<\/p>\n

$(\u201dp\u201d).trigger(\u201dclick\u201d); \/\/\u89e6\u53d1\u6240\u6709p\u5143\u7d20\u7684click\u4e8b\u4ef6
\n\uff085\uff09bind(eventtype,fn)\uff0cunbind(eventtype): \u4e8b\u4ef6\u7684\u7ed1\u5b9a\u4e0e\u53cd\u7ed1\u5b9a
\n\u4ece\u6bcf\u4e00\u4e2a\u5339\u914d\u7684\u5143\u7d20\u4e2d\uff08\u6dfb\u52a0\uff09\u5220\u9664\u7ed1\u5b9a\u7684\u4e8b\u4ef6\u3002\u4f8b\u5982\uff1a<\/p>\n

$(\u201dp\u201d).bind(\u201dclick\u201d, function(){alert($(this).text());}); \/\/\u4e3a\u6bcf\u4e2ap\u5143\u7d20\u6dfb\u52a0\u5355\u51fb\u4e8b\u4ef6$(\u201dp\u201d).unbind(); \/\/\u5220\u9664\u6240\u6709p\u5143\u7d20\u4e0a\u7684\u6240\u6709\u4e8b\u4ef6$(\u201dp\u201d).unbind(\u201dclick\u201d) \/\/\u5220\u9664\u6240\u6709p\u5143\u7d20\u4e0a\u7684\u5355\u51fb\u4e8b\u4ef6
\n10\u3001\u51e0\u4e2a\u5b9e\u7528\u7279\u6548\u529f\u80fd
\n\u5176\u4e2dtoggle()\u548cslidetoggle()\u65b9\u6cd5\u63d0\u4f9b\u4e86\u72b6\u6001\u5207\u6362\u529f\u80fd\u3002
\n\u5982toggle()\u65b9\u6cd5\u5305\u62ec\u4e86hide()\u548cshow()\u65b9\u6cd5\u3002
\nslideToggle()\u65b9\u6cd5\u5305\u62ec\u4e86slideDown()\u548cslideUp\u65b9\u6cd5\u3002<\/p>\n

11\u3001\u51e0\u4e2a\u6709\u7528\u7684jQuery\u65b9\u6cd5<\/p>\n

$.browser.\u6d4f\u89c8\u5668\u7c7b\u578b\uff1a\u68c0\u6d4b\u6d4f\u89c8\u5668\u7c7b\u578b\u3002\u6709\u6548\u53c2\u6570\uff1asafari, opera, msie, mozilla\u3002\u5982\u68c0\u6d4b\u662f\u5426ie\uff1a$.browser.isie\uff0c\u662fie\u6d4f\u89c8\u5668\u5219\u8fd4\u56detrue\u3002<\/p>\n

$.each(obj, fn)\uff1a\u901a\u7528\u7684\u8fed\u4ee3\u51fd\u6570\u3002\u53ef\u7528\u4e8e\u8fd1\u4f3c\u5730\u8fed\u4ee3\u5bf9\u8c61\u548c\u6570\u7ec4\uff08\u4ee3\u66ff\u5faa\u73af\uff09\u3002\u5982<\/p>\n

$.each( [0,1,2], function(i, n){ alert( \u201cItem #\u201d + i + \u201c: \u201d + n ); });
\n\u7b49\u4ef7\u4e8e\uff1a<\/p>\n

var tempArr=[0,1,2];for(var i=0;i
\n\u4e5f\u53ef\u4ee5\u5904\u7406json\u6570\u636e\uff0c\u5982<\/p>\n

$.each( { name: \u201cJohn\u201d, lang: \u201cJS\u201d }, function(i, n){ alert( \u201cName: \u201d + i + \u201c, Value: \u201d + n ); });
\n\u7ed3\u679c\u4e3a\uff1a<\/p>\n

Name:name, Value:JohnName:lang, Value:JS
\n$.extend(target,prop1,propN)\uff1a\u7528\u4e00\u4e2a\u6216\u591a\u4e2a\u5176\u4ed6\u5bf9\u8c61\u6765\u6269\u5c55\u4e00\u4e2a\u5bf9\u8c61\uff0c\u8fd4\u56de\u8fd9\u4e2a\u88ab\u6269\u5c55\u7684\u5bf9\u8c61\u3002\u8fd9\u662fjquery\u5b9e\u73b0\u7684\u7ee7\u627f\u65b9\u5f0f\u3002
\n\u5982\uff1a<\/p>\n

\u4ee3\u7801
\n$.extend(settings, options);\/\/\u5408\u5e76settings\u548coptions\uff0c\u5e76\u5c06\u5408\u5e76\u7ed3\u679c\u8fd4\u56desettings\u4e2d\uff0c\u76f8\u5f53\u4e8eoptions\u7ee7\u627fsetting\u5e76\u5c06\u7ee7\u627f\u7ed3 \u679c\u4fdd\u5b58\u5728setting\u4e2d\u3002var settings = $.extend({}, defaults, options);\/\/\u5408\u5e76defaults\u548coptions\uff0c\u5e76\u5c06\u5408\u5e76\u7ed3\u679c\u8fd4\u56de\u5230setting\u4e2d\u800c\u4e0d\u8986\u76d6default\u5185\u5bb9\u3002
\n\u53ef\u4ee5\u6709\u591a\u4e2a\u53c2\u6570\uff08\u5408\u5e76\u591a\u9879\u5e76\u8fd4\u56de\uff09<\/p>\n

$.map(array, fn)\uff1a\u6570\u7ec4\u6620\u5c04\u3002\u628a\u4e00\u4e2a\u6570\u7ec4\u4e2d\u7684\u9879\u76ee(\u5904\u7406\u8f6c\u6362\u540e)\u4fdd\u5b58\u5230\u5230\u53e6\u4e00\u4e2a\u65b0\u6570\u7ec4\u4e2d\uff0c\u5e76\u8fd4\u56de\u751f\u6210\u7684\u65b0\u6570\u7ec4\u3002
\n\u5982\uff1a<\/p>\n

var tempArr=$.map( [0,1,2], function(i){ return i + 4; });tempArr\u5185\u5bb9\u4e3a\uff1a[4,5,6]var tempArr=$.map( [0,1,2], function(i){ return i > 0 ? i + 1 : null; });tempArr\u5185\u5bb9\u4e3a\uff1a[2,3]$.merge(arr1,arr2):\u5408\u5e76\u4e24\u4e2a\u6570\u7ec4\u5e76\u5220\u9664\u5176\u4e2d\u91cd\u590d\u7684\u9879\u76ee\u3002\u5982\uff1a$.merge( [0,1,2], [2,3,4] ) \/\/\u8fd4\u56de[0,1,2,3,4]$.trim(str)\uff1a\u5220\u9664\u5b57\u7b26\u4e32\u4e24\u7aef\u7684\u7a7a\u767d\u5b57\u7b26\u3002\u5982\uff1a$.trim(\u201d hello, how are you? \u201c); \/\/\u8fd4\u56de\u201dhello,how are you? \u201d<\/p>\n

12\u3001\u89e3\u51b3\u81ea\u5b9a\u4e49\u65b9\u6cd5\u6216\u5176\u4ed6\u7c7b\u5e93\u4e0ejQuery\u7684\u51b2\u7a81
\n\u5f88\u591a\u65f6\u5019\u6211\u4eec\u81ea\u5df1\u5b9a\u4e49\u4e86$(id)\u65b9\u6cd5\u6765\u83b7\u53d6\u4e00\u4e2a\u5143\u7d20\uff0c\u6216\u8005\u5176\u4ed6\u7684\u4e00\u4e9bjs\u7c7b\u5e93\u5982prototype\u4e5f\u90fd\u5b9a\u4e49\u4e86$\u65b9\u6cd5\uff0c\u5982\u679c\u540c\u65f6\u628a\u8fd9\u4e9b\u5185\u5bb9\u653e\u5728\u4e00\u8d77\u5c31\u4f1a\u5f15\u8d77\u53d8\u91cf\u65b9\u6cd5\u5b9a\u4e49\u51b2\u7a81\uff0cJquery\u5bf9\u6b64\u4e13\u95e8\u63d0\u4f9b\u4e86\u65b9\u6cd5\u7528\u4e8e\u89e3\u51b3\u6b64\u95ee\u9898\u3002
\n\u4f7f\u7528jquery\u4e2d\u7684jQuery.noConflict();\u65b9\u6cd5\u5373\u53ef\u628a\u53d8\u91cf$\u7684\u63a7\u5236\u6743\u8ba9\u6e21\u7ed9\u7b2c\u4e00\u4e2a\u5b9e\u73b0\u5b83\u7684\u90a3\u4e2a\u5e93\u6216\u4e4b\u524d\u81ea\u5b9a\u4e49\u7684$\u65b9\u6cd5\u3002\u4e4b\u540e\u5e94\u7528 Jquery\u7684\u65f6\u5019\u53ea\u8981\u5c06\u6240\u6709\u7684$\u6362\u6210jQuery\u5373\u53ef\uff0c\u5982\u539f\u6765\u5f15\u7528\u5bf9\u8c61\u65b9\u6cd5$(\u201d#msg\u201d)\u6539\u4e3ajQuery(\u201d#msg\u201d)\u3002
\n\u5982\uff1ajQuery.noConflict();\/\/ \u5f00\u59cb\u4f7f\u7528jQueryjQuery(\u201ddiv p\u201c).hide();\/\/ \u4f7f\u7528\u5176\u4ed6\u5e93\u7684 $()$(\u201dcontent\u201d).style.display = \u2018none\u2019;<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

1,$:$(“a”) \u662f\u4e00\u4e2ajQuery\u9009\u62e9\u5668(selector),\u5728\u8fd9\u91cc\uff0c\u5b83\u9009\u62e9\u6240\u6709 […]<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[26],"tags":[],"class_list":["post-934","post","type-post","status-publish","format-standard","hentry","category-jquery"],"blocksy_meta":[],"_links":{"self":[{"href":"https:\/\/enjoyasp.net\/index.php\/wp-json\/wp\/v2\/posts\/934","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/enjoyasp.net\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/enjoyasp.net\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/enjoyasp.net\/index.php\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/enjoyasp.net\/index.php\/wp-json\/wp\/v2\/comments?post=934"}],"version-history":[{"count":0,"href":"https:\/\/enjoyasp.net\/index.php\/wp-json\/wp\/v2\/posts\/934\/revisions"}],"wp:attachment":[{"href":"https:\/\/enjoyasp.net\/index.php\/wp-json\/wp\/v2\/media?parent=934"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/enjoyasp.net\/index.php\/wp-json\/wp\/v2\/categories?post=934"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/enjoyasp.net\/index.php\/wp-json\/wp\/v2\/tags?post=934"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}