无法加载协定为“NM3.IClrService”的终结点配置部分，因为找到了该协定的多个终结点配置。请按名称指示首选的终结点配置部分

 <binding name="NetTcpBinding_IClrService1" receiveTimeout="00:10:00"
          sendTimeout="00:10:00" transferMode="Streamed" maxBufferPoolSize="524288000"
          maxBufferSize="2000000000" maxReceivedMessageSize="2147483647">
          <security mode="None" />
        </binding>
 <endpoint address="net.tcp://132.122.***.**:3366/" binding="netTcpBinding"
        bindingConfiguration="NetTcpBinding_IClrService1" contract="NM3.IClrService"
        name="NetTcpBinding_IClrService1" />

我的web.config中没有我自己没有搜索出来重复节点配置

于是我指定了webservice的名字

 NM3.ClrServiceClient client = new Web.NM3.ClrServiceClient("NetTcpBinding_IClrService1");

然后就没有报错啦~

借鉴了这位大佬的~

https://blog.csdn.net/dongfengkuayue/article/details/38392923?tdsourcetag=s_pcqq_aiomsg