\u539f\u751fjavascript\u65b9\u6cd5\uff1a<\/p>\n
var a = document.getElementById(\u201cdom\u201d); <\/p>\n
del_space(a); \/\/\u6e05\u7406\u7a7a\u683c <\/p>\n
var b = a.childNodes; \/\/\u83b7\u53d6a\u7684\u5168\u90e8\u5b50\u8282\u70b9\uff1b <\/p>\n
var c = a.parentNode; \/\/\u83b7\u53d6a\u7684\u7236\u8282\u70b9\uff1b <\/p>\n
var d = a.nextSibling; \/\/\u83b7\u53d6a\u7684\u4e0b\u4e00\u4e2a\u5144\u5f1f\u8282\u70b9 <\/p>\n
var e = a.previousSibling; \/\/\u83b7\u53d6a\u7684\u4e0a\u4e00\u4e2a\u5144\u5f1f\u8282\u70b9 <\/p>\n
var f = a.firstChild; \/\/\u83b7\u53d6a\u7684\u7b2c\u4e00\u4e2a\u5b50\u8282\u70b9 <\/p>\n
var g = a.lastChild; \/\/\u83b7\u53d6a\u7684\u6700\u540e\u4e00\u4e2a\u5b50\u8282\u70b9<\/p>\n
jQuery\u65b9\u6cd5\uff1a<\/p>\n
jQuery.parent(expr) \/\/\u627e\u7236\u4eb2\u8282\u70b9\uff0c\u53ef\u4ee5\u4f20\u5165expr\u8fdb\u884c\u8fc7\u6ee4\uff0c\u6bd4\u5982(“span”).parent()\u6216\u8005(\u201cspan\u201d).parent(\u201c.class\u201d)<\/p>\n
jQuery.parents(expr) \/\/\u7c7b\u4f3c\u4e8ejQuery.parents(expr),\u4f46\u662f\u662f\u67e5\u627e\u6240\u6709\u7956\u5148\u5143\u7d20\uff0c\u4e0d\u9650\u4e8e\u7236\u5143\u7d20<\/p>\n
jQuery.children(expr) \/\/\u8fd4\u56de\u6240\u6709\u5b50\u8282\u70b9\uff0c\u8fd9\u4e2a\u65b9\u6cd5\u53ea\u4f1a\u8fd4\u56de\u76f4\u63a5\u7684\u5b69\u5b50\u8282\u70b9\uff0c\u4e0d\u4f1a\u8fd4\u56de\u6240\u6709\u7684\u5b50\u5b59\u8282\u70b9<\/p>\n
jQuery.contents() \/\/\u8fd4\u56de\u4e0b\u9762\u7684\u6240\u6709\u5185\u5bb9\uff0c\u5305\u62ec\u8282\u70b9\u548c\u6587\u672c\u3002\u8fd9\u4e2a\u65b9\u6cd5\u548cchildren()\u7684\u533a\u522b\u5c31\u5728\u4e8e\uff0c\u5305\u62ec\u7a7a\u767d\u6587\u672c\uff0c\u4e5f\u4f1a\u88ab\u4f5c\u4e3a\u4e00\u4e2ajQuery\u5bf9\u8c61\u8fd4\u56de\uff0cchildren()\u5219\u53ea\u4f1a\u8fd4\u56de\u8282\u70b9<\/p>\n
jQuery.prev() \/\/\u8fd4\u56de\u4e0a\u4e00\u4e2a\u5144\u5f1f\u8282\u70b9\uff0c\u4e0d\u662f\u6240\u6709\u7684\u5144\u5f1f\u8282\u70b9<\/p>\n
jQuery.prevAll() \/\/\u8fd4\u56de\u6240\u6709\u4e4b\u524d\u7684\u5144\u5f1f\u8282\u70b9<\/p>\n
jQuery.next() \/\/\u8fd4\u56de\u4e0b\u4e00\u4e2a\u5144\u5f1f\u8282\u70b9\uff0c\u4e0d\u662f\u6240\u6709\u7684\u5144\u5f1f\u8282\u70b9<\/p>\n
jQuery.nextAll() \/\/\u8fd4\u56de\u6240\u6709\u4e4b\u540e\u7684\u5144\u5f1f\u8282\u70b9<\/p>\n
jQuery.siblings() \/\/\u8fd4\u56de\u5144\u5f1f\u59d0\u59b9\u8282\u70b9\uff0c\u4e0d\u5206\u524d\u540e<\/p>\n
jQuery.find(expr) \/\/\u8ddfjQuery.filter(expr)\u5b8c\u5168\u4e0d\u4e00\u6837\u3002jQuery.filter()\u662f\u4ece\u521d\u59cb\u7684jQuery\u5bf9\u8c61\u96c6\u5408\u4e2d\u7b5b\u9009\u51fa\u4e00\u90e8\u5206\uff0c\u800cjQuery.find()\u7684\u8fd4\u56de\u7ed3\u679c\uff0c\u4e0d\u4f1a\u6709\u521d\u59cb\u96c6\u5408\u4e2d\u7684\u5185\u5bb9\uff0c\u6bd4\u5982(“p”),find(“span”),\u662f\u4ecep\u5143\u7d20\u5f00\u59cb\u627e,\u7b49\u540c\u4e8e(\u201cp span\u201d).<\/p>\n
\u6b22\u8fce\u5206\u4eab\u672c\u6587\uff0c\u8f6c\u8f7d\u8bf7\u4fdd\u7559\u51fa\u5904\uff1a\u524d\u7aefABC<\/a> » js jquery \u83b7\u53d6\u7236\u7ea7\u3001\u5b50\u7ea7\u3001\u5144\u5f1f\u5143\u7d20(\u5305\u62ec\u7956\u7ea7\u3001\u5b59\u7ea7\u7b49)<\/a><\/p>","protected":false},"excerpt":{"rendered":" \u539f\u751fjavascript\u65b9\u6cd5\uff1a var a = document.getElementById(\u201cdom\u201d); del_space(a); \/\/\u6e05\u7406\u7a7a\u683c var b = a.c […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[],"_links":{"self":[{"href":"http:\/\/www.qdabc.cn\/index.php?rest_route=\/wp\/v2\/posts\/1884"}],"collection":[{"href":"http:\/\/www.qdabc.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.qdabc.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.qdabc.cn\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.qdabc.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1884"}],"version-history":[{"count":1,"href":"http:\/\/www.qdabc.cn\/index.php?rest_route=\/wp\/v2\/posts\/1884\/revisions"}],"predecessor-version":[{"id":1885,"href":"http:\/\/www.qdabc.cn\/index.php?rest_route=\/wp\/v2\/posts\/1884\/revisions\/1885"}],"wp:attachment":[{"href":"http:\/\/www.qdabc.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1884"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.qdabc.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1884"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.qdabc.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1884"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}