修复parseSpecification函数，支持净重X+格式的规格解析

pages/evaluate2/index.js

@@ -211,11 +211,12 @@ Page({
   
   // 解析规格，提取类型（净重/毛重）和数值范围
   parseSpecification(spec) {
-    const weightMatch = spec.match(/(净重|毛重)(\d+)-(\d+)/);
-    if (weightMatch) {
-      const type = weightMatch[1]; // 净重或毛重
-      const min = parseFloat(weightMatch[2]);
-      const max = parseFloat(weightMatch[3]);
+    // 匹配 "净重X-Y" 或 "毛重X-Y" 格式
+    const rangeMatch = spec.match(/(净重|毛重)(\d+)-(\d+)/);
+    if (rangeMatch) {
+      const type = rangeMatch[1]; // 净重或毛重
+      const min = parseFloat(rangeMatch[2]);
+      const max = parseFloat(rangeMatch[3]);
       const avg = (min + max) / 2;
       return {
         type: type,
@@ -224,6 +225,33 @@ Page({
         avg: avg
       };
     }
+    
+    // 匹配 "净重X+" 或 "毛重X+" 格式
+    const plusMatch = spec.match(/(净重|毛重)(\d+)\+/);
+    if (plusMatch) {
+      const type = plusMatch[1]; // 净重或毛重
+      const value = parseFloat(plusMatch[2]);
+      return {
+        type: type,
+        min: value,
+        max: value,
+        avg: value
+      };
+    }
+    
+    // 匹配 "净重X" 或 "毛重X" 格式
+    const singleMatch = spec.match(/(净重|毛重)(\d+)/);
+    if (singleMatch) {
+      const type = singleMatch[1]; // 净重或毛重
+      const value = parseFloat(singleMatch[2]);
+      return {
+        type: type,
+        min: value,
+        max: value,
+        avg: value
+      };
+    }
+    
     return null;
   },