【订单列表】页面无数据，页数展示为”undefined“

src/components/pagination/main.js

@@ -172,11 +172,11 @@ import _ from "lodash";
 		  <div className="page-btn-group">
 		  <Icon  onClick={()=>{this.onPrevClick()}}   type={"left"} className={ this.state.page >  1 ? "page-prev" :"page-prev disabled"  } />
 		  {
-			   btns.map((item, index) => {
+				 btns!='undefined'?btns.map((item, index) => {
 				   return (
 				   <div  onClick={()=>{this.onPageClick(item)}}  key={index}    className={ item== this.state.page ?  "btn-page active":"btn-page"}>{item}</div>
 				  )
-				})
+				}):1
 			}
 		  <Icon  onClick={()=>{this.onNextClick()
 		  }}   type={"right"}   className={ this.state.page >= page_num ? "page-next disabled" :"page-next"  } />