diff --git a/src/components/time/time.js b/src/components/time/time.js
index 623ba55..9b275a8 100644
--- a/src/components/time/time.js
+++ b/src/components/time/time.js
@@ -4,7 +4,12 @@ Component({
 	 */
 	properties: {
 		// 世界时间格式
-		defaultTime: String
+		defaultTime: String,
+		// 显示日期的长度
+		timeLength: {
+			type: Number,
+			value: 30
+		}
 	},
 
 	/**
@@ -125,7 +130,7 @@ Component({
 			let {multiArray, multiIndex} = this.data;
 			// 月-日
 			let defaultMD = month + '-' + day;
-			for (let i = 0, oneDay = 24 * 60 * 60 * 1000; i <= 180; i++) {
+			for (let i = 0, oneDay = 24 * 60 * 60 * 1000; i <= this.properties.timeLength; i++) {
 				let tmpMD = date.getUTCMonth() + 1 + "-" + date.getUTCDate();
 				if(defaultMD === tmpMD)
 					multiIndex[0] = i;
diff --git a/src/components/time/time.wxml b/src/components/time/time.wxml
index cad891c..e1d97e1 100644
--- a/src/components/time/time.wxml
+++ b/src/components/time/time.wxml
@@ -1,6 +1,11 @@
+<!-- 
+	接受一个世界时格式的时间 defaultTime ，表示从此刻时间开始，可以选择后 timeLength 天日期，
+	默认 30 天，并在选择确定后触发一个 handleChangeTime 事件，data 为世界时格式的 time
+ -->
+
 <picker class='time-picker' mode="multiSelector" bindchange="bindStartMultiPickerChange" 
 	bindtap='pickerTap' bindcolumnchange="bindMultiPickerColumnChange" value="{{ multiIndex }}" 
 	range="{{ multiArray }}"
 >
-	{{startDate}}
+	{{ startDate }}
 </picker>
diff --git a/src/pages/editor/editor.wxml b/src/pages/editor/editor.wxml
index c817fd3..032e19a 100644
--- a/src/pages/editor/editor.wxml
+++ b/src/pages/editor/editor.wxml
@@ -31,7 +31,7 @@
 	<view class="editor-time-wrap">
 		<image src="/src/image/editor-date.svg" mode="aspectFit" style="top: 32rpx; left: 24rpx;"></image>
 		<view style="display: inline-block; margin-left: 84rpx; font-weight: bold;">时间</view>
-		<time class="editor-time-text" defaultTime="{{ task.date }}" catch:handleChangeTime="handleChangeTime"></time>
+		<time class="editor-time-text" defaultTime="{{ task.date }}" timeLength="{{ 180 }}" catch:handleChangeTime="handleChangeTime"></time>
 	</view>
 
 	<view style="height: 2rpx; border-top: 2rpx rgba(255, 255, 255, 0.63) solid;"></view>