chore: update example #4.

jaywcjlove · Nov 25, 2021 · 8b9a5a9 · 8b9a5a9
1 parent 9328113
commit 8b9a5a9
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/README.md b/README.md
@@ -375,10 +375,10 @@ E.g: `G2868`, `D22`, `D9`, `Z5`, `Z24`, `Z17`
 ### 小数点后几位
 
 ```regex
-^[0-9]+(.[0-9]{2})?$
+^(0|[1-9]\d*)(.[0-9]{2})$
 ```
 
-🚧  E.g: `1.22`, `0223.23`。精确到 `2` 位小数
+🚧  E.g: `1.22`, `0223.23`, `0.00`。精确到 `2` 位小数
 
 ### 小数