Fix stepper (#735)

* fix(stepper): 修复已 - 或者 . 开头时,显示不正确的问题

fix #731

* fix(image-processor): 修复iOS相机拍摄图片变形的问题

fix #734

components/image-reader/image-processor.js

@@ -168,7 +168,11 @@ function makeCanvas(img, orientation, maxWidth, maxHeight, quality) {
         ctx.drawImage(img, 0, 0, width, height)
     }
   } else {
-    ctx.drawImage(img, 0, 0, width, height)
+    if ('5678'.includes(orientation)) {
+      ctx.drawImage(img, 0, 0, height, width)
+    } else {
+      ctx.drawImage(img, 0, 0, width, height)
+    }
   }
 
   if ((UA.oldIOS || UA.oldAndroid || UA.mQQBrowser || !navigator.userAgent) && window.JPEGEncoder) {

components/stepper/index.vue

@@ -176,7 +176,7 @@ export default {
     },
     $_formatNum(value) {
       // @elist
-      value = String(value).replace(/[^0-9.-]/g, '')
+      value = String(value).replace(/[^0-9.-]|^-|^\./g, '')
       return value === '' ? 0 : this.isInteger ? Math.floor(value) : +value
     },
     $_getCurrentNum(value) {