diff --git a/app/src/main/java/com/casic/xz/meterage/extensions/Activity.kt b/app/src/main/java/com/casic/xz/meterage/extensions/Activity.kt
index a932a03..872f9f3 100644
--- a/app/src/main/java/com/casic/xz/meterage/extensions/Activity.kt
+++ b/app/src/main/java/com/casic/xz/meterage/extensions/Activity.kt
@@ -14,7 +14,7 @@
 
     val layout = datePicker.wheelLayout
     layout.setDateMode(DateMode.YEAR_MONTH_DAY)
-    layout.setDateLabel("年", "月", "日");
+    layout.setDateLabel("年", "月", "日")
     layout.setTextSize(14f.sp2px(this).toFloat())
     layout.setSelectedTextSize(16f.sp2px(this).toFloat())
     layout.setSelectedTextColor(R.color.themeColor.convertColor(this))
@@ -27,7 +27,17 @@
     )
 
     datePicker.setOnDatePickedListener { year, month, day ->
-        callback.onDateSelected(String.format("%s-%s-%s", year, month, day))
+        val m = if (month < 10) {
+            "0${month}"
+        } else {
+            month
+        }
+        val d = if (day < 10) {
+            "0${day}"
+        } else {
+            day
+        }
+        callback.onDateSelected(String.format("%s-%s-%s", year, m, d))
     }
     datePicker.show()
 }
\ No newline at end of file