Question

在用foreach遍历时，如何让div的id自动的加？

<% ProducerActInsService pais3 = new ProducerActInsService(); List<ProducerActs> lstPa3 = pais3.getTop1ProducerActs(); foreach (ProducerActs pa3 in lstPa3) { %> <li class="current" id="p0"> <img src="producerImg/<%= pa3.ProducerActImg %>.gif" alt="" /></li> <%} %> 如上：我想实现的是id=p0，能够在每遍历一次，就加一次，如我读出四个数据，那id就应该是p0,p1,p2,p3，请问这样如何实现啊？

Answer 1

id="p<%= i %>" i++; 追问： <% ProducerActInsService pais3 = new ProducerActInsService(); List<ProducerActs> lstPa3 = pais3.getTop4ProducerActs(); foreach (ProducerActs pa3 in lstPa3) { if (Convert.ToString(Session["i"]) == "0") { int i = 0; %> <li class="current" id="p<%= i %>"> <img src="producerImg/<%= pa3.ProducerActImg %>.gif" alt="" /></li> <% i++; Session["i"] = i; } else { int j = Convert.ToInt32(Session["i"]); %> <li class="current" id="p<%= j %>"> <img src="producerImg/<%= pa3.ProducerActImg %>.gif" alt="" /></li> <% j++; Session["i"] = j; } } %> 一开始 直接写的int i=0;然后就++；发现每次都是1，因为每次遍历时，ID都是0开始，后来我就这么写的，<% ProducerActInsService pais3 = new ProducerActInsService(); List<ProducerActs> lstPa3 = pais3.getTop4ProducerActs(); foreach (ProducerActs pa3 in lstPa3) { if (Convert.ToString(Session["i"]) == "0") { int i = 0; %> <li class="current" id="p<%= i %>"> <img src="producerImg/<%= pa3.ProducerActImg %>.gif" alt="" /></li> <% i++; Session["i"] = i; } else { int j = Convert.ToInt32(Session["i"]); %> <li class="current" id="p<%= j %>"> <img src="producerImg/<%= pa3.ProducerActImg %>.gif" alt="" /></li> <% j++; Session["i"] = j; } } %> 请问下，还有没有简便点的写法啊？ 回答： <% ProducerActInsService pais3 = new ProducerActInsService(); List<ProducerActs> lstPa3 = pais3.getTop1ProducerActs(); int i=0; foreach (ProducerActs pa3 in lstPa3) { i++; %> <li class="current" id="p<%= i %>"> <img src="producerImg/<%= pa3.ProducerActImg %>.gif" alt="" /></li> <%} %>