jq筛选方法(参照手册) 过滤: 1) eq(index|-index):获取第N个元素 负值表示从末尾开始匹配 <!-- 获取匹配的第二个元素 --> <p> This is just a test.</p> <p> So is this</p> <script> $("p").eq(1) $("p").eq(-2) // <p> This is just a test.</
$(document).ready(function(){ $('#swticher-large').click(function(){ var $speech = $('div.speech'); var currectSize = $speech.css('fontSize'); var num = parseFloat(currectSize,10); //parseFloa
快速生成大量模拟数据的方法: create table TEST(id integer, TEST_NUMBER NUMBER(18,6)); insert into TEST select i+j, i+j from ( with DATA2(j) as ( select 0 j from DUAL union all