优化

@@ -570,15 +570,10 @@ Page({
   },
 
   bindinput: function(e) {
-   
-    var inputamount = e.detail.value
-    if (inputamount.length < 1 || !format.checkNumber(inputamount)) {
-      this.showToast("请输入正确格式");
-      return;
-    }
-    console.log("bindinput", inputamount)
+    console.log("bindinput", e.detail.value)
+    var inputamount = parseFloat(e.detail.value)
     this.setData({
-      reduce_amount: parseFloat(inputamount)
+      reduce_amount: inputamount.toFixed(2)
     })
   },