{"id":2030,"date":"2022-12-02T23:19:37","date_gmt":"2022-12-02T15:19:37","guid":{"rendered":"https:\/\/qaqaq.top\/?p=2030"},"modified":"2023-01-05T18:05:38","modified_gmt":"2023-01-05T10:05:38","slug":"jquery-jquery%e7%9a%84hello%e7%a8%8b%e5%ba%8f%e7%a4%ba%e4%be%8b%e3%80%81jquery-jquery%e7%9a%84%e5%87%bd%e6%95%b0%e6%a0%b8%e5%bf%83%e4%bb%8b%e7%bb%8d%e3%80%81jquery-%e5%a6%82%e4%bd%95%e5%8c%ba%e5%88%86","status":"publish","type":"post","link":"https:\/\/qaqaq.top\/?p=2030","title":{"rendered":"jQuery\u7684Hello\u7a0b\u5e8f\u793a\u4f8b\u3001\u51fd\u6570\u6838\u5fc3\u4ecb\u7ecd\u3001\u5982\u4f55\u533a\u5206DOM\u5bf9\u8c61\u548cjQuery\u5bf9\u8c61\u3001jQuery\u5bf9\u8c61\u7684\u672c\u8d28\u3001jQuery\u5bf9\u8c61\u548cDOM\u5bf9\u8c61\u4f7f\u7528\u4e0a\u7684\u533a\u522b\u3001jQuery\u5bf9\u8c61\u548cDOM\u5bf9\u8c61\u7684\u76f8\u4e92\u8f6c\u6362"},"content":{"rendered":"\n

jQuery-jQuery\u7684Hello\u7a0b\u5e8f\u793a\u4f8b<\/p>\n\n\n\n

<!DOCTYPE html PUBLIC \"-\/\/W3C\/\/DTD HTML 4.01 Transitional\/\/EN\" \"http:\/\/www.w3.org\/TR\/html4\/loose.dtd\">\n<html>\n<head>\n<meta http-equiv=\"Content-Type\" content=\"text\/html; charset=UTF-8\">\n<title>Insert title here<\/title>\n\t<script type=\"text\/javascript\" src=\"..\/script\/jquery-3.6.1.js\"><\/script>\n\t<script type=\"text\/javascript\">\n\t\t\/\/ window.onload = function () {\n\t\t\/\/ \tvar btnObj = document.getElementById(\"btnId\");\n\t\t\/\/ \talert(btnObj);\/\/[object HTMLButtonElement] ===>> dom\u5bf9\u8c61\n\t\t\/\/ \tbtnObj.onclick = function () {\n\t\t\/\/ \t\talert(\"js \u539f\u751f\u7684\u5355\u51fb\u4e8b\u4ef6\");\n\t\t\/\/ \t}\n\t\t\/\/ }\n\n\t\talert($)\n\n\t\t$(function () { \/\/ \u8868\u793a\u9875\u9762\u52a0\u8f7d\u5b8c\u6210 \u4e4b\u540e\uff0c\u76f8\u5f53window.onload = function () {}\n\t\t\tvar $btnObj = $(\"#btnId\"); \/\/ \u8868\u793a\u6309id\u67e5\u8be2\u6807\u7b7e\u5bf9\u8c61\n\t\t\t$btnObj.click(function () { \/\/ \u7ed1\u5b9a\u5355\u51fb\u4e8b\u4ef6\n\t\t\t\talert(\"jQery \u7684\u5355\u51fb\u4e8b\u4ef6\");\n\t\t\t})\n\t\t});\n\n\t<\/script>\n<\/head>\n<body>\n\n\t<button id=\"btnId\">SayHello<\/button>\n\n<\/body>\n<\/html><\/code><\/pre>\n\n\n\n
jQuery-jQuery\u7684\u51fd\u6570\u6838\u5fc3\u4ecb\u7ecd\u3001jQuery-\u5982\u4f55\u533a\u5206DOM\u5bf9\u8c61\u548cjQuery\u5bf9\u8c61<\/p>\n\n\n\n
<!DOCTYPE html PUBLIC \"-\/\/W3C\/\/DTD HTML 4.01 Transitional\/\/EN\" \"http:\/\/www.w3.org\/TR\/html4\/loose.dtd\">\n<html>\n<head>\n<meta http-equiv=\"Content-Type\" content=\"text\/html; charset=UTF-8\">\n<title>Insert title here<\/title>\n<script type=\"text\/javascript\" src=\"..\/script\/jquery-1.7.2.js\"><\/script>\n<script type=\"text\/javascript\">\n\n    \/*\n    jQuery \u6838\u5fc3\u51fd\u6570\n    $ \u662f jQuery \u7684\u6838\u5fc3\u51fd\u6570\uff0c\u80fd\u5b8c\u6210 jQuery \u7684\u5f88\u591a\u529f\u80fd\u3002$()\u5c31\u662f\u8c03\u7528$\u8fd9\u4e2a\u51fd\u6570\n\n    1\u3001\u4f20\u5165\u53c2\u6570\u4e3a [ \u51fd\u6570 ] \u65f6\uff1a\n        \u8868\u793a\u9875\u9762\u52a0\u8f7d\u5b8c\u6210\u4e4b\u540e\u3002\u76f8\u5f53\u4e8e window.onload = function(){}\n\n    2\u3001\u4f20\u5165\u53c2\u6570\u4e3a [ HTML \u5b57\u7b26\u4e32 ] \u65f6\uff1a\n        \u4f1a\u5bf9\u6211\u4eec\u521b\u5efa\u8fd9\u4e2a html \u6807\u7b7e\u5bf9\u8c61\n\n    3\u3001\u4f20\u5165\u53c2\u6570\u4e3a [ \u9009\u62e9\u5668\u5b57\u7b26\u4e32 ] \u65f6\uff1a\n        $(\u201c#id \u5c5e\u6027\u503c\u201d);       id \u9009\u62e9\u5668\uff0c\u6839\u636e id \u67e5\u8be2\u6807\u7b7e\u5bf9\u8c61\n        $(\u201c\u6807\u7b7e\u540d\u201d);           \u6807\u7b7e\u540d\u9009\u62e9\u5668\uff0c\u6839\u636e\u6307\u5b9a\u7684\u6807\u7b7e\u540d\u67e5\u8be2\u6807\u7b7e\u5bf9\u8c61\n        $(\u201c.class \u5c5e\u6027\u503c\u201d);    \u7c7b\u578b\u9009\u62e9\u5668\uff0c\u53ef\u4ee5\u6839\u636e class \u5c5e\u6027\u67e5\u8be2\u6807\u7b7e\u5bf9\u8c61\n\n    4\u3001\u4f20\u5165\u53c2\u6570\u4e3a [ DOM \u5bf9\u8c61 ] \u65f6\uff1a\n        \u4f1a\u628a\u8fd9\u4e2a dom \u5bf9\u8c61\u8f6c\u6362\u4e3a jQuery \u5bf9\u8c61\n     *\/\n\n    \/\/\u6838\u5fc3\u51fd\u6570\u76844\u4e2a\u4f5c\u7528\n    $(function () {\n        alert(\"\u9875\u9762\u52a0\u8f7d\u5b8c\u6210\u4e4b\u540e\uff0c\u81ea\u52a8\u8c03\u7528\");\n\n        $(\"    <div>\" +\n            \"        <span>div-span1<\/span>\" +\n            \"        <span>div-span2<\/span>\" +\n            \"    <\/div>\").appendTo(\"body\")\n\n        alert($(\"button\").length);\n\n        var btnObj = document.getElementById(\"btn01\");\n        alert(btnObj);\n        alert($(btnObj));\n\n        alert($(\"<h1><\/h1>\"));\n\n        alert($(\"#btn01\"));\n\n    });\n\n\t\/\/\u4f20\u5165\u53c2\u6570\u4e3a[\u51fd\u6570]\u65f6\uff1a\u5728\u6587\u6863\u52a0\u8f7d\u5b8c\u6210\u540e\u6267\u884c\u8fd9\u4e2a\u51fd\u6570\n\t\/\/\u4f20\u5165\u53c2\u6570\u4e3a[HTML\u5b57\u7b26\u4e32]\u65f6\uff1a\u6839\u636e\u8fd9\u4e2a\u5b57\u7b26\u4e32\u521b\u5efa\u5143\u7d20\u8282\u70b9\u5bf9\u8c61\n\t\/\/\u4f20\u5165\u53c2\u6570\u4e3a[\u9009\u62e9\u5668\u5b57\u7b26\u4e32]\u65f6\uff1a\u6839\u636e\u8fd9\u4e2a\u5b57\u7b26\u4e32\u67e5\u627e\u5143\u7d20\u8282\u70b9\u5bf9\u8c61\n\t\/\/\u4f20\u5165\u53c2\u6570\u4e3a[DOM\u5bf9\u8c61]\u65f6\uff1a\u5c06DOM\u5bf9\u8c61\u5305\u88c5\u4e3ajQuery\u5bf9\u8c61\u8fd4\u56de\n\n<\/script>\n<\/head>\n<body>\n    <div>\n        <span>div-span1<\/span>\n        <span>div-span2<\/span>\n    <\/div>\n    <button id=\"btn01\">\u6309\u94ae1<\/button>\n    <button>\u6309\u94ae2<\/button>\n    <button>\u6309\u94ae3<\/button>\n\n<\/body>\n<\/html><\/code><\/pre>\n\n\n\n
jQuery-jQuery\u5bf9\u8c61\u7684\u672c\u8d28\u3001jQuery-jQuery\u5bf9\u8c61\u548cDOM\u5bf9\u8c61\u4f7f\u7528\u4e0a\u7684\u533a\u522b\u3001jQuery-jQuery\u5bf9\u8c61\u548cDOM\u5bf9\u8c61\u7684\u76f8\u4e92\u8f6c\u6362<\/p>\n\n\n\n
<!DOCTYPE html PUBLIC \"-\/\/W3C\/\/DTD HTML 4.01 Transitional\/\/EN\" \"http:\/\/www.w3.org\/TR\/html4\/loose.dtd\">\n<html>\n<head>\n<meta http-equiv=\"Content-Type\" content=\"text\/html; charset=UTF-8\">\n<title>Insert title here<\/title>\n<script type=\"text\/javascript\" src=\"..\/script\/jquery-1.7.2.js\"><\/script>\n<script type=\"text\/javascript\">\n\n\t\/*\n\tjQuery \u5bf9\u8c61\u548c dom \u5bf9\u8c61\u533a\u5206\n\n\t1\u3001\u4ec0\u4e48\u662f jQuery \u5bf9\u8c61\uff0c\u4ec0\u4e48\u662f dom \u5bf9\u8c61\n\t\tDom \u5bf9\u8c61\n\t\t\t1.\u901a\u8fc7 getElementById()\u67e5\u8be2\u51fa\u6765\u7684\u6807\u7b7e\u5bf9\u8c61\u662f Dom \u5bf9\u8c61\n\t\t\t2.\u901a\u8fc7 getElementsByName()\u67e5\u8be2\u51fa\u6765\u7684\u6807\u7b7e\u5bf9\u8c61\u662f Dom \u5bf9\u8c61\n\t\t\t3.\u901a\u8fc7 getElementsByTagName()\u67e5\u8be2\u51fa\u6765\u7684\u6807\u7b7e\u5bf9\u8c61\u662f Dom \u5bf9\u8c61\n\t\t\t4.\u901a\u8fc7 createElement() \u65b9\u6cd5\u521b\u5efa\u7684\u5bf9\u8c61\uff0c\u662f Dom \u5bf9\u8c61\n\t\t\t\tDOM \u5bf9\u8c61 Alert \u51fa\u6765\u7684\u6548\u679c\u662f\uff1a[object HTML \u6807\u7b7e\u540d Element]\n\n\t\tjQuery \u5bf9\u8c61\n\t\t\t5.\u901a\u8fc7 JQuery \u63d0\u4f9b\u7684 API \u521b\u5efa\u7684\u5bf9\u8c61\uff0c\u662f JQuery \u5bf9\u8c61\n\t\t\t6.\u901a\u8fc7 JQuery \u5305\u88c5\u7684 Dom \u5bf9\u8c61\uff0c\u4e5f\u662f JQuery \u5bf9\u8c61\n\t\t\t7.\u901a\u8fc7 JQuery \u63d0\u4f9b\u7684 API \u67e5\u8be2\u5230\u7684\u5bf9\u8c61\uff0c\u662f JQuery \u5bf9\u8c61\n\t\t\t\tjQuery \u5bf9\u8c61 Alert \u51fa\u6765\u7684\u6548\u679c\u662f\uff1a[object Object]\n\n\t2\u3001\u95ee\u9898\uff1ajQuery \u5bf9\u8c61\u7684\u672c\u8d28\u662f\u4ec0\u4e48\uff1f\n\t\tjQuery \u5bf9\u8c61\u662f dom \u5bf9\u8c61\u7684\u6570\u7ec4 + jQuery \u63d0\u4f9b\u7684\u4e00\u7cfb\u5217\u529f\u80fd\u51fd\u6570\u3002\n\n\t3\u3001jQuery \u5bf9\u8c61\u548c Dom \u5bf9\u8c61\u4f7f\u7528\u533a\u522b\n\t\tjQuery \u5bf9\u8c61\u4e0d\u80fd\u4f7f\u7528 DOM \u5bf9\u8c61\u7684\u5c5e\u6027\u548c\u65b9\u6cd5\n\t\tDOM \u5bf9\u8c61\u4e5f\u4e0d\u80fd\u4f7f\u7528 jQuery \u5bf9\u8c61\u7684\u5c5e\u6027\u548c\u65b9\u6cd5\n\n\t4\u3001Dom \u5bf9\u8c61\u548c jQuery \u5bf9\u8c61\u4e92\u8f6c\n\t\t1\u3001dom \u5bf9\u8c61\u8f6c\u5316\u4e3a jQuery \u5bf9\u8c61\uff08*\u91cd\u70b9\uff09\n\t\t\t1\u3001\u5148\u6709 DOM \u5bf9\u8c61\n\t\t\t2\u3001$( DOM \u5bf9\u8c61 ) \u5c31\u53ef\u4ee5\u8f6c\u6362\u6210\u4e3a jQuery \u5bf9\u8c61\n\t\t2\u3001jQuery \u5bf9\u8c61\u8f6c\u4e3a dom \u5bf9\u8c61\uff08*\u91cd\u70b9\uff09\n\t\t\t1\u3001\u5148\u6709 jQuery \u5bf9\u8c61\n\t\t\t2\u3001jQuery \u5bf9\u8c61[\u4e0b\u6807]\u53d6\u51fa\u76f8\u5e94\u7684 DOM \u5bf9\u8c61\n\n\t *\/\n\n\t$(function(){\n\t\t\/\/testDiv.css(\"color\",\"red\")\n\t\t\/\/testDiv.style.color = \"blue\";\n\n\t\tvar arr = [12,\"abc\",true];\n\n\t\tvar $btns = $(\"button\");\n\n\t\tfor (var i = 0; i < $btns.length; i++){\n\t\t\talert($btns[i])\n\t\t}\n\n\t\t\/\/ alert(1);\n\n\t\tdocument.getElementById(\"testDiv\").innerHTML = \"\u8fd9\u662fdom\u5bf9\u8c61\u7684\u5c5e\u6027InnerHTML\";\n\t\t\/\/ $(\"#testDiv\").innerHTML = \"\u8fd9\u662fdom\u5bf9\u8c61\u7684\u5c5e\u6027InnerHTML\"; \/\/ jQuery \u5bf9\u8c61\u4e0d\u80fd\u4f7f\u7528 DOM \u5bf9\u8c61\u7684\u5c5e\u6027\u548c\u65b9\u6cd5\n\n\t\t$(\"#testDiv\").click(function (){\n\t\t\talert(\"click\u662fjQuery\u5bf9\u8c61\u7684\u65b9\u6cd5\");\n\t\t})\n\n\t\t\/\/ document.getElementById(\"testDiv\").click(function (){\n\t\t\/\/ \talert(\"click\u662fjQuery\u5bf9\u8c61\u7684\u65b9\u6cd5\");\n\t\t\/\/ }) \/\/ DOM \u5bf9\u8c61\u4e5f\u4e0d\u80fd\u4f7f\u7528 jQuery \u5bf9\u8c61\u7684\u5c5e\u6027\u548c\u65b9\u6cd5\n\n\t\talert($(document.getElementById(\"testDiv\")));\n\n\t\talert($(document.getElementById(\"testDiv\"))[0]);\n\n\t\talert($(\"button:first\"));\n\n\t});\n\n<\/script>\n<\/head>\n<body>\n\t\n\t<div id=\"testDiv\">qaqaq is Very Good!<\/div>\n\t\n\t<button id=\"dom2dom\">\u4f7f\u7528DOM\u5bf9\u8c61\u8c03\u7528DOM\u65b9\u6cd5<\/button>\n\t<button id=\"dom2jQuery\">\u4f7f\u7528DOM\u5bf9\u8c61\u8c03\u7528jQuery\u65b9\u6cd5<\/button>\n\t<button id=\"jQuery2jQuery\">\u4f7f\u7528jQuery\u5bf9\u8c61\u8c03\u7528jQuery\u65b9\u6cd5<\/button>\n\t<button id=\"jQuery2dom\">\u4f7f\u7528jQuery\u5bf9\u8c61\u8c03\u7528DOM\u65b9\u6cd5<\/button>\n\n<\/body>\n<\/html><\/code><\/pre>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
<\/p>\n\n\n\n
<!DOCTYPE html PUBLIC \"-\/\/W3C\/\/DTD HTML 4.01 Transitional\/\/EN\" \"http:\/\/www.w3.org\/TR\/html4\/loose.dtd\">\n<html>\n<head>\n<meta http-equiv=\"Content-Type\" content=\"text\/html; charset=UTF-8\">\n<title>Insert title here<\/title>\n\n<script type=\"text\/javascript\" src=\"..\/script\/jquery-1.7.2.js\"><\/script>\n<script type=\"text\/javascript\">\n\n\t\/\/\u4f7f\u7528$()\u4ee3\u66ffwindow.onload\n\t$(function(){\n\t\t\/\/\u4f7f\u7528\u9009\u62e9\u5668\u83b7\u53d6\u6309\u94ae\u5bf9\u8c61\uff0c\u968f\u540e\u7ed1\u5b9a\u5355\u51fb\u54cd\u5e94\u51fd\u6570\n\t\t$(\"#btnId\").click(function(){\n\t\t\t\/\/\u5f39\u51faHello\n\t\t\talert('Hello');\n\t\t});\n\t});\n\n<\/script>\n\n\n<\/head>\n<body>\n\n\t<button id=\"btnId\">SayHello<\/button>\n\n<\/body>\n<\/html><\/code><\/pre>\n\n\n\n
<!DOCTYPE html PUBLIC \"-\/\/W3C\/\/DTD HTML 4.01 Transitional\/\/EN\" \"http:\/\/www.w3.org\/TR\/html4\/loose.dtd\">\n<html>\n<head>\n<meta http-equiv=\"Content-Type\" content=\"text\/html; charset=UTF-8\">\n<title>Insert title here<\/title>\n<script type=\"text\/javascript\" src=\"..\/script\/jquery-1.7.2.js\"><\/script>\n<script type=\"text\/javascript\">\n\n\t\/\/$ \u662f jQuery \u7684\u6838\u5fc3\u51fd\u6570\uff0c\u80fd\u5b8c\u6210 jQuery \u7684\u5f88\u591a\u529f\u80fd\u3002$()\u5c31\u662f\u8c03\u7528$\u8fd9\u4e2a\u51fd\u6570\n\t$(function(){\n\t\talert($);\n\t});\n\n\n<\/script>\n<\/head>\n<body>\n\n\t<button id=\"btn\">Button<\/button>\n\n<\/body>\n<\/html><\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"
jQuery-jQuery\u7684Hello\u7a0b\u5e8f\u793a\u4f8b jQuery-jQuery\u7684\u51fd\u6570\u6838\u5fc3\u4ecb\u7ecd\u3001jQuery-\u5982\u4f55\u533a […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[59],"tags":[61],"class_list":["post-2030","post","type-post","status-publish","format-standard","hentry","category-javaweb-code","tag-javaweb"],"_links":{"self":[{"href":"https:\/\/qaqaq.top\/index.php?rest_route=\/wp\/v2\/posts\/2030"}],"collection":[{"href":"https:\/\/qaqaq.top\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/qaqaq.top\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/qaqaq.top\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/qaqaq.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2030"}],"version-history":[{"count":4,"href":"https:\/\/qaqaq.top\/index.php?rest_route=\/wp\/v2\/posts\/2030\/revisions"}],"predecessor-version":[{"id":3249,"href":"https:\/\/qaqaq.top\/index.php?rest_route=\/wp\/v2\/posts\/2030\/revisions\/3249"}],"wp:attachment":[{"href":"https:\/\/qaqaq.top\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2030"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/qaqaq.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2030"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/qaqaq.top\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2030"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}