diff --git a/src/utils/common.js b/src/utils/common.js
index c794c08..338023a 100644
--- a/src/utils/common.js
+++ b/src/utils/common.js
@@ -79,6 +79,7 @@ export function departGetForm (arr = []) {
 
 export function handleInput (form) {
   let value = this[form.split('.')[0]][form.split('.')[1]]
+  value = String(value)
   if (value.split('.').length > 2) value = String(parseFloat(value))
   this[form.split('.')[0]][form.split('.')[1]] = Number(value) > 100 ? 0 : value.replace(/[^.\d]/g, '')
 }