jQuery-Selectors(\u9009\u62e9\u5668)\u7684\u4f7f\u7528(\u4e00\u3001\u57fa\u672c\u7bc7)<\/p>\n
\u672c\u7cfb\u5217\u6587\u7ae0\u4e3b\u8981\u8bb2\u8ff0jQuery\u6846\u67b6\u7684\u9009\u62e9\u5668(Selectors)\u4f7f\u7528\u65b9\u6cd5\uff0c\u6211\u5c06\u4ee5\u5b9e\u4f8b\u65b9\u5f0f\u8fdb\u884c\u8bb2\u8ff0\uff0c\u4ee5\u7b80\u5355\uff0c\u5168\u9762\u4e3a\u57fa\u7840\uff0c\u4e0d\u4f1a\u6d89\u53ca\u5f88\u6df1\uff0c\u6211\u7684\u5b66\u4e60\u65b9\u6cd5\uff1a\u5148\u5165\u95e8\uff0c\u540e\u8fdb\u9636\uff01
\n\u672c\u7cfb\u5217\u6587\u7ae0\u5206\u4e3a\uff1a\u57fa\u672c\u7bc7\u3001\u5c42\u6b21\u7bc7\u3001\u7b80\u5355\u7bc7\u3001\u5185\u5bb9\u7bc7\u3001\u53ef\u89c1\u6027\u7bc7\u3001\u5c5e\u6027\u7bc7\u3001\u5b50\u5143\u7d20\u7bc7\u3001\u8868\u5355\u7bc7\u3001\u8868\u5355\u5bf9\u8c61\u5c5e\u6027\u7bc7\u51719\u7bc7\u6587\u7ae0\u3002
\n\u60a8\u5bf9\u672c\u7cfb\u5217\u6587\u7ae0\u6709\u4efb\u4f55\u5efa\u8bae\u6216\u610f\u89c1\u8bf7\u53d1\u9001\u5230\u90ae\u7bb1\uff1asjzlgt@qq.com
\n\u7531\u4e8e\u662f\u7b2c\u4e00\u6b21\u5199\u6280\u672f\u6027\u7cfb\u5217\u6587\u7ae0\uff0c\u96be\u514d\u4f1a\u51fa\u9519\u6216\u4ee3\u7801BUG\uff0c\u6b22\u8fce\u6307\u51fa\uff0c\u5728\u6b64\u8c22\u8fc7\uff01
\n\u60a8\u53ef\u4ee5\u5230jQuery\u5b98\u7f51\u6765\u5b66\u4e60\u66f4\u591a\u7684\u6709\u5173jQuery\u77e5\u8bc6\u3002<\/p>\n
1. #id\u7528\u6cd5
\n\u5b9a\u4e49\uff1a\u6839\u636e\u7ed9\u5b9a\u7684ID\u5339\u914d\u4e00\u4e2a\u5143\u7d20\u3002
\n\u8fd4\u56de\u503c\uff1aElement
\n\u53c2\u6570\uff1aid (String) : \u7528\u4e8e\u641c\u7d22\u7684\uff0c\u901a\u8fc7\u5143\u7d20\u7684 id \u5c5e\u6027\u4e2d\u7ed9\u5b9a\u7684\u503c
\n\u5b9e\u4f8b\uff1a\u5c06ID\u4e3a”div_red”\u7684DIV\u7684\u8fb9\u6846\u6539\u4e3a\u7ea2\u8272
\n\u4ee3\u7801\uff1a$(“#div_red”).css(“border”,”red 2px solid”); \/\/\u70b9\u51fb\u6309\u94ae\u4e00\u5c06\u6267\u884c\u8fd9\u53e5\u4ee3\u7801
\nDIV ID=”div_red”<\/p>\n
\u6269\u5c55\uff1a#id\u4e2d\u7684id\u53ef\u4ee5\u662f\u9875\u9762\u4efb\u4f55\u5143\u7d20\u7684id,\u5982input,btuuon,div,table,span\u7b49\u7b49<\/p>\n
2. element\u7528\u6cd5
\n\u5b9a\u4e49\uff1a\u6839\u636e\u7ed9\u5b9a\u7684\u5143\u7d20\u540d\u5339\u914d\u6240\u6709\u5143\u7d20\u3002
\n\u8fd4\u56de\u503c\uff1aArray<Element>
\n\u53c2\u6570\uff1aelement (String) : \u4e00\u4e2a\u7528\u4e8e\u641c\u7d22\u7684\u5143\u7d20\u3002\u6307\u5411 DOM \u8282\u70b9\u7684\u6807\u7b7e\u540d\u3002
\n\u5b9e\u4f8b\uff1a\u5c06\u9875\u9762<P>\u6807\u8bb0\u5185\u7684\u6587\u5b57\u989c\u8272\u6539\u4e3a\u7ea2\u8272
\n\u4ee3\u7801\uff1a$(“p”).css(“color”,”red”); \/\/\u70b9\u51fb\u6309\u94ae\u4e8c\u5c06\u6267\u884c\u8fd9\u53e5\u4ee3\u7801<\/p>\n
P\u6807\u8bb01 ID=”p1″<\/p>\n
P\u6807\u8bb02 \u65e0ID<\/p>\n
\u6269\u5c55\uff1a\u53c2\u6570\u503c\u53ef\u4ee5\u662f\u9875\u9762\u4efb\u4f55\u5143\u7d20\uff0c\u5982div,button,div,table,tr,td,p,h1,span,input<\/p>\n
3. .class\u7528\u6cd5
\n\u5b9a\u4e49\uff1a\u6839\u636e\u7ed9\u5b9a\u7684\u7c7b\uff08\u6837\u5f0f\u540d\u79f0\uff09\u5339\u914d\u5143\u7d20\u3002
\n\u8fd4\u56de\u503c\uff1aArray<Element>
\n\u53c2\u6570\uff1aclass (String) \u4e00\u4e2a\u7528\u4ee5\u641c\u7d22\u7684\u7c7b\uff08\u6837\u5f0f\u540d\u79f0\uff09\u3002\u4e00\u4e2a\u5143\u7d20\u53ef\u4ee5\u6709\u591a\u4e2a\u7c7b\uff08\u6837\u5f0f\u540d\u79f0\uff09\uff0c\u53ea\u8981\u6709\u4e00\u4e2a\u7b26\u5408\u5c31\u80fd\u88ab\u5339\u914d\u5230\u3002
\n\u5b9e\u4f8b\uff1a\u5c06\u9875\u9762\u6240\u6709\u5f15\u7528\u4e86”.red_test”\u6837\u5f0f\u7684\u5143\u7d20\u80cc\u666f\u989c\u8272\u6539\u4e3a\u84dd\u8272
\n\u4ee3\u7801\uff1a$(“.red_test”).css(“background-color”,”blue”); \/\/\u70b9\u51fb\u6309\u94ae\u4e09\u5c06\u6267\u884c\u8fd9\u53e5\u4ee3\u7801
\nDIV ID=”div_red_1″ calss=”red_test”
\nDIV ID=”div_red_2″ \u65e0class<\/p>\n
SPAN ID=”span_red_1″ calss=”red_test”<\/p>\n
\u6269\u5c55\uff1a\u53ef\u4ee5\u770b\u4e00\u4e0bjQuery\u5b98\u7f51\u4e0aSelectors\/.class\u7684\u5b9e\u4f8b\u3002<\/p>\n
4. *\u7528\u6cd5
\n\u5b9a\u4e49\uff1a\u5339\u914d\u6240\u6709\u5143\u7d20 \u591a\u7528\u4e8e\u7ed3\u5408\u4e0a\u4e0b\u6587\u6765\u641c\u7d22\u3002
\n\u8fd4\u56de\u503c\uff1aArray<Element>
\n\u5b9e\u4f8b\uff1a\u67e5\u770b\u9875\u6240\u6709\u5143\u7d20\u7684\u6570\u91cf
\n\u4ee3\u7801\uff1a$(“*”).length; \/\/\u70b9\u51fb\u6309\u94ae\u56db\u5c06\u6267\u884c\u8fd9\u53e5\u4ee3\u7801
\n\u6269\u5c55\uff1a\u53ef\u4ee5\u770b\u4e00\u4e0bjQuery\u5b98\u7f51\u4e0aSelectors\/*\u7684\u5b9e\u4f8b\u3002<\/p>\n
5. selector1,selector2,selectorN\u7528\u6cd5
\n\u5b9a\u4e49\uff1a\u5c06\u6bcf\u4e00\u4e2a\u9009\u62e9\u5668\u5339\u914d\u5230\u7684\u5143\u7d20\u5408\u5e76\u540e\u4e00\u8d77\u8fd4\u56de\u3002\u4f60\u53ef\u4ee5\u6307\u5b9a\u4efb\u610f\u591a\u4e2a\u9009\u62e9\u5668\uff0c\u5e76\u5c06\u5339\u914d\u5230\u7684\u5143\u7d20\u5408\u5e76\u5230\u4e00\u4e2a\u7ed3\u679c\u5185\u3002
\n\u8fd4\u56de\u503c\uff1aArray<Element>
\n\u53c2\u6570\uff1aselector1 (Selector) : \u4e00\u4e2a\u6709\u6548\u7684\u9009\u62e9\u5668 selector2 (Selector) : \u53e6\u4e00\u4e2a\u6709\u6548\u7684\u9009\u62e9\u5668 selectorN (Selector) : (\u53ef\u9009) \u4efb\u610f\u591a\u4e2a\u6709\u6548\u9009\u62e9\u5668
\n\u5b9e\u4f8b\uff1a\u5c06\u9875\u9762\u4e0a\u6240\u6709\u5f15\u7528\u540d\u79f0\u4e3a”li_test”\u6837\u5f0f\u7684<Li>\u5143\u7d20\u548cID\u4e3a”li_red”\u7684<Li>\u5143\u7d20\u7684\u8fb9\u6846\u6539\u4e3a\u7eff\u8272\uff0c\u5bbd\u5ea6\u4e3a5px
\n\u4ee3\u7801\uff1a$(“.red_test,#btn_5”).css(“border”,”5px solid Green”); \/\/\u70b9\u51fb\u6309\u94ae\u4e94\u5c06\u6267\u884c\u8fd9\u53e5\u4ee3\u7801<\/p>\n
* Li
\n* Li id=”li_red”
\n* Li
\n* Li
\n* Li
\n* Li<\/p>\n
jQuery\u9009\u62e9\u5668\u7684\u4f7f\u7528\u7075\u6d3b\u5ea6\u975e\u5e38\u9ad8\uff0c\u81f3\u6b64\uff0c\u60a8\u53ef\u4ee5\u5229\u7528\u672c\u6587\u4e2d\u7684\u56db\u79cd\u9009\u62e9\u5668\u548c\u4e0a\u4e00\u7bc7\u4e2d\u6240\u8bb2\u7684\u9009\u62e9\u5668\u7ec4\u5408\u5e76\u770b\u6548\u679c\uff0c\u76f8\u4fe1\u4f60\u4f1a\u770b\u5230\u8db3\u4ee5\u4ee4\u4f60\u9707\u64bc\u7684\u7ed3\u679c\uff01
\n1. ancestor descendant\u7528\u6cd5
\n\u5b9a?? \u4e49\uff1a\u5728\u7ed9\u5b9a\u7684\u7956\u5148\u5143\u7d20\u4e0b\u5339\u914d\u6240\u6709\u7684\u7b26\u5408\u6761\u4ef6\u540e\u4ee3\u5143\u7d20
\n\u8fd4\u56de\u503c\uff1aArray
\n\u53c2?? \u6570\uff1aancestor (Selector):\u4efb\u4f55\u6709\u6548\u9009\u62e9\u5668 descendant (Selector):\u7528\u4ee5\u5339\u914d\u5143\u7d20\u7684\u9009\u62e9\u5668\uff0c\u5e76\u4e14\u5b83\u662f\u7b2c\u4e00\u4e2a\u9009\u62e9\u5668\u7684\u540e\u4ee3\u5143\u7d20
\n\u5b9e?? \u4f8b\uff1a\u5c06ID\u4e3a”div_1″\u7684DIV\u4e2d\u6240\u6709\u7684Input\u5143\u7d20\u7684\u80cc\u666f\u8272\u6539\u4e3a\u7ea2\u8272
\n\u4ee3\u7801\uff1a $(“div_1 input”).css(“background-color”,”red”); \/\/\u70b9\u51fb\u6309\u94ae\u4e00\u5c06\u6267\u884c\u8fd9\u53e5\u4ee3\u7801<\/p>\n
DIV ID=”div_1″
\nDIV ID=”div_2″
\nDIV ID=”div_3″
\nDIV ID=”div_4″<\/p>\n
DIV ID=”div_5″
\nDIV ID=”div_5_1″<\/p>\n
\u6ce8\u610f\uff1a\u672c\u5b9e\u4f8b\u8bf7\u4e0e\u7b2c2\u4e2a\u7528\u6cd5\u7684\u5b9e\u4f8b\u4f5c\u5bf9\u6bd4\uff0c\u770b\u5176\u63a7\u5236\u8303\u56f4\uff01
\n2. parent > child\u7528\u6cd5
\n\u5b9a?? \u4e49\uff1a\u5728\u7ed9\u5b9a\u7684\u7236\u5143\u7d20\u4e0b\u5339\u914d\u6240\u6709\u7684\u5b50\u5143\u7d20
\n\u8fd4\u56de\u503c\uff1aArray
\n\u53c2?? \u6570\uff1aparent (Selector):\u4efb\u4f55\u6709\u6548\u9009\u62e9\u5668 child (Selector): \u7528\u4ee5\u5339\u914d\u5143\u7d20\u7684\u9009\u62e9\u5668\uff0c\u5e76\u4e14\u5b83\u662f\u7b2c\u4e00\u4e2a\u9009\u62e9\u5668\u7684\u5b50\u5143\u7d20
\n\u5b9e?? \u4f8b\uff1a\u5c06ID\u4e3a”div_a1″\u7684DIV\u4e2d\u6240\u6709\u7684Input\u5143\u7d20\u7684\u80cc\u666f\u8272\u6539\u4e3a\u7ea2\u8272
\n\u4ee3\u7801\uff1a $(“#div_a1 > input”).css(“background-color”,”red”); \/\/\u70b9\u51fb\u6309\u94ae\u4e8c\u5c06\u6267\u884c\u8fd9\u53e5\u4ee3\u7801<\/p>\n
DIV ID=”div_a1″
\nDIV ID=”div_a2″
\nDIV ID=”div_a3″
\nDIV ID=”div_a4″<\/p>\n
DIV ID=”div_a5″
\nDIV ID=”div_a5_1″
\n3. prev + next\u7528\u6cd5
\n\u5b9a?? \u4e49\uff1a\u5339\u914d\u6240\u6709\u7d27\u63a5\u5728 prev \u5143\u7d20\u540e\u7684 next \u5143\u7d20
\n\u8fd4\u56de\u503c\uff1aArray
\n\u53c2?? \u6570\uff1aprev (Selector):\u4efb\u4f55\u6709\u6548\u9009\u62e9\u5668 next (Selector):\u4e00\u4e2a\u6709\u6548\u9009\u62e9\u5668\u5e76\u4e14\u7d27\u63a5\u7740\u7b2c\u4e00\u4e2a\u9009\u62e9\u5668
\n\u5b9e?? \u4f8b\uff1a\u5c06ID\u4e3a”div_b1″\u7684DIV\u4e2d\u6240\u6709span\u5143\u7d20\u540e\u7d27\u8ddf\u7684input\u5143\u7d20\u7684\u80cc\u666f\u8272\u6539\u4e3a\u7ea2\u8272
\n\u4ee3\u7801\uff1a$(“#div_b1 span + input”).css(“background-color”,”red”); \/\/\u70b9\u51fb\u6309\u94ae\u4e09\u5c06\u6267\u884c\u8fd9\u53e5\u4ee3\u7801<\/p>\n
DIV ID=”div_b1″
\nspan<\/p>\n
DIV ID=”div_b2″
\nspan
\nDIV ID=”div_b3″
\nspan
\nDIV ID=”div_b4″
\nspan<\/p>\n
DIV ID=”div_b5″
\nDIV ID=”div_b5_1″ span<\/p>\n
\u6ce8\u610f\uff1a\u7b2c\u4e00\u4e2a\u9009\u62e9\u5668\u6211\u7528\u4e86ancestor descendant\u7528\u6cd5\uff0c\u60a8\u4e5f\u53ef\u4ee5\u5c1d\u8bd5\u5176\u5b83\u7528\u6cd5\u3002\u672c\u4f8b\u8bf7\u4e0e\u4e0b\u9762\u7b2c4\u70b9\u7684\u5b9e\u4f8b\u4f5c\u5bf9\u6bd4\u5e76\u770b\u6548\u679c\uff01
\n4. prev ~ siblings\u7528\u6cd5
\n\u5b9a?? \u4e49\uff1a\u5339\u914d prev \u5143\u7d20\u4e4b\u540e\u7684\u6240\u6709 siblings \u5143\u7d20
\n\u8fd4\u56de\u503c\uff1aArray
\n\u53c2?? \u6570\uff1aprev (Selector):\u4efb\u4f55\u6709\u6548\u9009\u62e9\u5668 siblings (Selector):\u4e00\u4e2a\u9009\u62e9\u5668\uff0c\u5e76\u4e14\u5b83\u4f5c\u4e3a\u7b2c\u4e00\u4e2a\u9009\u62e9\u5668\u7684\u540c\u8f88
\n\u5b9e?? \u4f8b\uff1a\u5c06ID\u4e3a”div_c1″\u7684DIV\u4e2d\u6240\u6709\u4e0espan\u5143\u7d20\u4e4b\u540e\u5e73\u7ea7\u7684input\u5143\u7d20\u7684\u80cc\u666f\u8272\u6539\u4e3a\u7ea2\u8272
\n\u4ee3\u7801\uff1a$(“#div_c1 span ~ input”).css(“background-color”,”red”); \/\/\u70b9\u51fb\u6309\u94ae\u56db\u5c06\u6267\u884c\u8fd9\u53e5\u4ee3\u7801<\/p>\n
DIV ID=”div_c1″
\nspan<\/p>\n
DIV ID=”div_c2″
\nspan
\nDIV ID=”div_c3″
\nspan
\nDIV ID=”div_c4″
\nspan<\/p>\n
DIV ID=”div_c5″
\nDIV ID=”div_c5_1″ span<\/p>\n
\u6ce8\u610f\uff1aDIV ID=”div_c1″ \u548c ID=”div_c4″\u4e2d\u7684span\u5143\u7d20\u524d\u7684input\u5e76\u672a\u6539\u53d8\u80cc\u666f\u8272\uff0c\u56e0\u4e3a\u7b2c\u4e8c\u4e2a\u9009\u62e9\u5668\u67e5\u627e\u7b2c\u4e00\u4e2a\u9009\u62e9\u5668\u4e4b\u540e\u7684\u5143\u7d20<\/p>\n
1. :first\u7528\u6cd5
\n\u5b9a?? \u4e49\uff1a\u5339\u914d\u627e\u5230\u7684\u7b2c\u4e00\u4e2a\u5143\u7d20
\n\u8fd4\u56de\u503c\uff1aElement
\n\u5b9e?? \u4f8b\uff1a\u5c06ID\u4e3a”ul_1″\u7684ul\u4e2d\u7684\u7b2c\u4e00\u4e2aLi\u5143\u7d20\u7684\u80cc\u666f\u8272\u6539\u4e3a\u7ea2\u8272
\n\u4ee3?? \u7801\uff1a $(“#ul_1 li:first”).css(“background-color”,”red”); \/\/\u70b9\u51fb\u6309\u94ae\u4e00\u5c06\u6267\u884c\u8fd9\u53e5\u4ee3\u7801<\/p>\n
ul ID=”ul_1″<\/p>\n
* Li 1
\n* Li 2
\n* Li 3
\n* Li 4
\n* Li 5
\n* Li 6
\n* Li 7
\n* Li 8<\/p>\n
2. :last\u7528\u6cd5
\n\u5b9a?? \u4e49\uff1a\u5339\u914d\u627e\u5230\u7684\u6700\u540e\u4e00\u4e2a\u5143\u7d20
\n\u8fd4\u56de\u503c\uff1aElement
\n\u5b9e?? \u4f8b\uff1a\u5c06ID\u4e3a”ul_2″\u7684ul\u4e2d\u7684\u6700\u540e\u4e00\u4e2aLi\u5143\u7d20\u7684\u80cc\u666f\u8272\u6539\u4e3a\u7ea2\u8272
\n\u4ee3?? \u7801\uff1a $(“#ul_2 li:last”).css(“background-color”,”red”); \/\/\u70b9\u51fb\u6309\u94ae\u4e8c\u5c06\u6267\u884c\u8fd9\u53e5\u4ee3\u7801<\/p>\n
ul ID=”ul_2″<\/p>\n
* Li 1
\n* Li 2
\n* Li 3
\n* Li 4
\n* Li 5
\n* Li 6
\n* Li 7
\n* Li 8<\/p>\n
3. :not(selector)\u7528\u6cd5
\n\u5b9a?? \u4e49\uff1a\u53bb\u9664\u6240\u6709\u4e0e\u7ed9\u5b9a\u9009\u62e9\u5668\u5339\u914d\u7684\u5143\u7d20
\n\u8fd4\u56de\u503c\uff1aArray
\n\u53c2?? \u6570\uff1aselector (Selector) : \u7528\u4e8e\u7b5b\u9009\u7684\u9009\u62e9\u5668
\n\u5b9e?? \u4f8b\uff1a\u5c06ID\u4e3a”ul_3″\u7684ul\u4e2d\u9664\u6700\u540e\u4e00\u4e2aLi\u5143\u7d20\u4ee5\u5916\u7684\u5176\u4ed6Li\u5143\u7d20\u7684\u80cc\u666f\u8272\u6539\u4e3a\u7ea2\u8272
\n\u4ee3?? \u7801\uff1a $(“#ul_3 li:not(li:last)”).css(“background-color”,”red”); \/\/\u70b9\u51fb\u6309\u94ae\u4e09\u5c06\u6267\u884c\u8fd9\u53e5\u4ee3\u7801<\/p>\n
ul ID=”ul_3″<\/p>\n
* Li 1
\n* Li 2
\n* Li 3
\n* Li 4
\n* Li 5
\n* Li 6
\n* Li 7
\n* Li 8<\/p>\n
\u6269\u5c55\uff1a\u4f60\u53ef\u4ee5\u8bd5\u8bd5\u6267\u884c $(“li:not(li:last)”).css(“background-color”,”red”); \u8fd9\u53e5\u4ee3\u7801\uff0c\u770b\u770b\u6709\u4ec0\u4e48\u6548\u679c
\n4. :even\u7528\u6cd5
\n\u5b9a?? \u4e49\uff1a\u5339\u914d\u6240\u6709\u7d22\u5f15\u503c\u4e3a\u5076\u6570\u7684\u5143\u7d20\uff0c\u4ece 0 \u5f00\u59cb\u8ba1\u6570
\n\u8fd4\u56de\u503c\uff1aArray
\n\u5b9e?? \u4f8b\uff1a\u5c06ID\u4e3a”ul_4″\u7684ul\u4e2d\u7d22\u5f15\u4e3a\u5076\u6570\u7684Li\u5143\u7d20\u7684\u80cc\u666f\u8272\u6539\u4e3a\u7ea2\u8272(\u6ce8\uff1a\u7d22\u5f15\u4ece0\u5f00\u59cb)
\n\u4ee3?? \u7801\uff1a $(“#ul_4 li:even”).css(“background-color”,”red”); \/\/\u70b9\u51fb\u6309\u94ae\u56db\u5c06\u6267\u884c\u8fd9\u53e5\u4ee3\u7801<\/p>\n
ul ID=”ul_4″<\/p>\n
* Li 1
\n* Li 2
\n* Li 3
\n* Li 4
\n* Li 5
\n* Li 6
\n* Li 7
\n* Li 8<\/p>\n
5. :odd\u7528\u6cd5
\n\u5b9a?? \u4e49\uff1a\u5339\u914d\u6240\u6709\u7d22\u5f15\u503c\u4e3a\u5947\u6570\u7684\u5143\u7d20\uff0c\u4ece 0 \u5f00\u59cb\u8ba1\u6570
\n\u8fd4\u56de\u503c\uff1aArray
\n\u5b9e?? \u4f8b\uff1a\u5c06ID\u4e3a”ul_5″\u7684ul\u4e2d\u7d22\u5f15\u4e3a\u5947\u6570\u7684Li\u5143\u7d20\u7684\u80cc\u666f\u8272\u6539\u4e3a\u7ea2\u8272(\u6ce8\uff1a\u7d22\u5f15\u4ece0\u5f00\u59cb)
\n\u4ee3?? \u7801\uff1a $(“#ul_5 li:odd”).css(“background-color”,”red”); \/\/\u70b9\u51fb\u6309\u94ae\u4e94\u5c06\u6267\u884c\u8fd9\u53e5\u4ee3\u7801<\/p>\n
ul ID=”ul_5″<\/p>\n
* Li 1
\n* Li 2
\n* Li 3
\n* Li 4
\n* Li 5
\n* Li 6
\n* Li 7
\n* Li 8<\/p>\n
6. :eq(index)\u7528\u6cd5
\n\u5b9a?? \u4e49\uff1a\u5339\u914d\u4e00\u4e2a\u7ed9\u5b9a\u7d22\u5f15\u503c\u7684\u5143\u7d20
\n\u8fd4\u56de\u503c\uff1aElement
\n\u53c2?? \u6570\uff1aindex (Number) : \u4ece 0 \u5f00\u59cb\u8ba1\u6570
\n\u5b9e?? \u4f8b\uff1a\u5c06ID\u4e3a”ul_6″\u7684ul\u4e2d\u7d22\u5f15\u4e3a3\u7684Li\u5143\u7d20\u7684\u80cc\u666f\u8272\u6539\u4e3a\u7ea2\u8272(\u6ce8\uff1a\u7d22\u5f15\u4ece0\u5f00\u59cb)
\n\u4ee3?? \u7801\uff1a $(“#ul_6 li:eq(3)”).css(“background-color”,”red”); \/\/\u70b9\u51fb\u6309\u94ae\u516d\u5c06\u6267\u884c\u8fd9\u53e5\u4ee3\u7801<\/p>\n
ul ID=”ul_6″<\/p>\n
* Li 1
\n* Li 2
\n* Li 3
\n* Li 4
\n* Li 5
\n* Li 6
\n* Li 7
\n* Li 8<\/p>\n
7. :gt(index)\u7528\u6cd5
\n\u5b9a?? \u4e49\uff1a\u5339\u914d\u6240\u6709\u5927\u4e8e\u7ed9\u5b9a\u7d22\u5f15\u503c\u7684\u5143\u7d20
\n\u8fd4\u56de\u503c\uff1aArray
\n\u53c2?? \u6570\uff1aindex (Number) : \u4ece 0 \u5f00\u59cb\u8ba1\u6570
\n\u5b9e?? \u4f8b\uff1a\u5c06ID\u4e3a”ul_7″\u7684ul\u4e2d\u7d22\u5f15\u503c\u5927\u4e8e3\u7684Li\u5143\u7d20\u7684\u80cc\u666f\u8272\u6539\u4e3a\u7ea2\u8272(\u6ce8\uff1a\u7d22\u5f15\u4ece0\u5f00\u59cb)
\n\u4ee3?? \u7801\uff1a $(“#ul_7 li:gt(3)”).css(“background-color”,”red”); \/\/\u70b9\u51fb\u6309\u94ae\u4e03\u5c06\u6267\u884c\u8fd9\u53e5\u4ee3\u7801<\/p>\n
ul ID=”ul_7″<\/p>\n
* Li 1
\n* Li 2
\n* Li 3
\n* Li 4
\n* Li 5
\n* Li 6
\n* Li 7
\n* Li 8<\/p>\n
8. :lt(index)\u7528\u6cd5
\n\u5b9a?? \u4e49\uff1a\u5339\u914d\u6240\u6709\u5c0f\u4e8e\u7ed9\u5b9a\u7d22\u5f15\u503c\u7684\u5143\u7d20
\n\u8fd4\u56de\u503c\uff1aArray
\n\u53c2?? \u6570\uff1aindex (Number) : \u4ece 0 \u5f00\u59cb\u8ba1\u6570
\n\u5b9e?? \u4f8b\uff1a\u5c06ID\u4e3a”ul_8″\u7684ul\u4e2d\u7d22\u5f15\u503c\u5c0f\u4e8e3\u7684Li\u5143\u7d20\u7684\u80cc\u666f\u8272\u6539\u4e3a\u7ea2\u8272(\u6ce8\uff1a\u7d22\u5f15\u4ece0\u5f00\u59cb)
\n\u4ee3?? \u7801\uff1a $(“#ul_8 li:lt(3)”).css(“background-color”,”red”); \/\/\u70b9\u51fb\u6309\u94ae\u516b\u5c06\u6267\u884c\u8fd9\u53e5\u4ee3\u7801<\/p>\n
ul ID=”ul_8″<\/p>\n
* Li 1
\n* Li 2
\n* Li 3
\n* Li 4
\n* Li 5
\n* Li 6
\n* Li 7
\n* Li 8<\/p>\n
9. :header\u7528\u6cd5
\n\u5b9a?? \u4e49\uff1a\u5339\u914d\u5982 h1, h2, h3\u4e4b\u7c7b\u7684\u6807\u9898\u5143\u7d20
\n\u8fd4\u56de\u503c\uff1aArray
\n\u5b9e?? \u4f8b\uff1a\u5c06ID\u4e3a”div_1″\u7684DIV\u4e2d\u6240\u6709header(\u6807\u9898)\u5143\u7d20\u7684\u80cc\u666f\u8272\u6539\u4e3a\u7ea2\u8272
\n\u4ee3?? \u7801\uff1a $(“#div_1 :header”).css(“background-color”,”red”); \/\/\u70b9\u51fb\u6309\u94ae\u4e5d\u5c06\u6267\u884c\u8fd9\u53e5\u4ee3\u7801<\/p>\n
DIV ID=”div_1″P\u6807\u8bb0<\/p>\n
span\u6807\u8bb0
\nH1
\nH2
\nH3
\nH4
\nH5
\nH6<\/p>\n
10. :animated\u7528\u6cd5
\n\u5b9a?? \u4e49\uff1a\u5339\u914d\u6240\u6709\u6b63\u5728\u6267\u884c\u52a8\u753b\u6548\u679c\u7684\u5143\u7d20
\n\u8fd4\u56de\u503c\uff1aArray
\n\u5b9e?? \u4f8b\uff1a\u5c06ID\u4e3a”div_2″\u7684DIV\u4e2d\u6ca1\u6709\u6267\u884c\u52a8\u753b\u6548\u679c\u7684\u5143\u7d20\u7684\u80cc\u666f\u8272\u6539\u4e3a\u7ea2\u8272
\n\u4ee3?? \u7801\uff1a $(“#div_2 :not(:animated)”).css(“background-color”,”red”); \/\/\u70b9\u51fb\u6309\u94ae\u5341\u5c06\u6267\u884c\u8fd9\u53e5\u4ee3\u7801
\nDIV id=”div_2″
\nspan\u6807\u8bb0<\/p>\n
1. :input\u7528\u6cd5 \u5b9a?? \u4e49\uff1a\u5339\u914d\u6240\u6709 input, textarea, select \u548c button \u5143\u7d20<\/p>\n
2. :text\u7528\u6cd5 \u5b9a?? \u4e49\uff1a\u5339\u914d\u6240\u6709\u7684\u5355\u884c\u6587\u672c\u6846<\/p>\n
3. :password\u7528\u6cd5 \u5b9a?? \u4e49\uff1a\u5339\u914d\u6240\u6709\u5bc6\u7801\u6846<\/p>\n","protected":false},"excerpt":{"rendered":"
jQuery-Selectors(\u9009\u62e9\u5668)\u7684\u4f7f\u7528(\u4e00\u3001\u57fa\u672c\u7bc7) \u672c\u7cfb\u5217\u6587\u7ae0\u4e3b\u8981\u8bb2\u8ff0jQuery\u6846\u67b6\u7684\u9009\u62e9\u5668(S […]<\/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-930","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\/930","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=930"}],"version-history":[{"count":0,"href":"https:\/\/enjoyasp.net\/index.php\/wp-json\/wp\/v2\/posts\/930\/revisions"}],"wp:attachment":[{"href":"https:\/\/enjoyasp.net\/index.php\/wp-json\/wp\/v2\/media?parent=930"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/enjoyasp.net\/index.php\/wp-json\/wp\/v2\/categories?post=930"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/enjoyasp.net\/index.php\/wp-json\/wp\/v2\/tags?post=930"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}