av-item">
							<a class="nav-link default" href="#step-1">
								<div class="num">1</div>
								<div style="font-size: small; font-weight: bold">服务器选择</div>
								<span style="font-size: small;color: #0b2e13;">broker安装到哪</span>
							</a>
						</li>
						<li class="nav-item">
							<a class="nav-link default" href="#step-2">
								<div class="num">2</div>
								<div style="font-size: small; font-weight: bold">JDK校验</div>
								<span style="font-size: small;color: #0b2