Step add title & content slot

examples/routers/steps.vue

@@ -1,7 +1,11 @@
 <template>
     <div style="border: 1px solid #ccc;">
         <Steps :current="1">
-            <Step title="已完成" content="这里是该步骤的描述信息"></Step>
+            <Step title="已完成">
+                <div slot="content">
+                    这里是该步骤的描述信息
+                </div>
+            </Step>
             <Step title="进行中" content="这里是该步骤的描述信息"></Step>
             <Step title="待进行" content="这里是该步骤的描述信息"></Step>
             <Step title="待进行" content="这里是该步骤的描述信息"></Step>

src/components/steps/step.vue

@@ -8,10 +8,10 @@
             </div>
         </div>
         <div :class="[prefixCls + '-main']">
-            <div :class="[prefixCls + '-title']">{{ title }}</div>
-            <slot>
-                <div v-if="content" :class="[prefixCls + '-content']">{{ content }}</div>
-            </slot>
+            <div :class="[prefixCls + '-title']"><slot name="title">{{ title }}</slot></div>
+            <div :class="[prefixCls + '-content']" v-if="content || $slots.content">
+                <slot name="content">{{ content }}</slot>
+            </div>
         </div>
     </div>
 </template>