Merge pull request #364 from kaola-fed/hotfix2018080fixBug

🐛  修复selected为null时报错的bug

src/js/components/form/KLSelect/index.html

@@ -35,7 +35,7 @@
 					<kl-icon fontSize=15 type="error" on-click={this.clearContent($event)} class="kl-icon-remove-addclass "/>
 				</div>
 				{/if}
-				{#if tags && selected.length > 0}
+				{#if tags && selected && selected.length > 0}
 					<span class="kl-select__tag" >
 						{selected[0]['name']}
 						<kl-icon type="cross" is-dis={selected.disabled} on-click={this.removeSelected(selected,0,$event)} />
@@ -63,7 +63,7 @@
 		<kl-scroll wrapMaxHeight="200px">
 			<ul>
 			{#if placeholder}
-			<li is-hover={key_index == -1} class="kl-listview-item" is-sel={multiple?!selected.length:!selected} on-click={this.select(undefined)}>
+			<li is-hover={key_index == -1} class="kl-listview-item" is-sel={multiple?(!selected || !selected.length):!selected} on-click={this.select(undefined)}>
 			{placeholder}
 			</li>
 			{/if}