Merge pull request #2064 from didi/fix-line-height-0

bugfix: line-height  0 编译成 line-height  0%

Author: hiyuki

packages/webpack-plugin/lib/platform/style/wx/index.js

@@ -285,6 +285,13 @@ module.exports = function getSpec ({ warn, error }) {
 
   // line-height
   const formatLineHeight = ({ prop, value, selector }) => {
+    // line-height 0 直接返回
+    if (+value === 0) {
+      return {
+        prop,
+        value
+      }
+    }
     return verifyValues({ prop, value, selector }) && ({
       prop,
       value: /^\s*(-?(\d+(\.\d+)?|\.\d+))\s*$/.test(value) ? `${Math.round(value * 100)}%` : value