s="icon checkmark"><use xlink:href="/v1.20/img/icons.svg#checkmark"/></svg><span>&nbsp;</span>
页面测试</a></span></p></div></div><nav class=toc-inlined aria-label="Table of Contents"><div><hr><ol><li role=none aria-label=开始之前><a href=#before-you-begin>开始之前</a><li role=none aria-label=应用基于权重的路由><a href=#apply-weight-based-routing>应用基于权重的路由</a><li role=none aria-label=理解原理><a href=#understanding-what-happened>理解原理</a><li role=none aria-l