diff --git a/app/src/main/java/io/legado/app/help/AppConfig.kt b/app/src/main/java/io/legado/app/help/AppConfig.kt
index eddc4f428..ac32d830a 100644
--- a/app/src/main/java/io/legado/app/help/AppConfig.kt
+++ b/app/src/main/java/io/legado/app/help/AppConfig.kt
@@ -59,7 +59,7 @@ object AppConfig {
         }
 
     val backgroundVerification: Boolean
-        get() = App.INSTANCE.getPrefBoolean(R.string.pk_background_verification)
+        get() = App.INSTANCE.getPrefBoolean(R.string.pk_background_verification, true)
 
     val autoRefreshBook: Boolean
         get() = App.INSTANCE.getPrefBoolean(R.string.pk_auto_refresh)
diff --git a/app/src/main/java/io/legado/app/model/analyzeRule/AnalyzeRule.kt b/app/src/main/java/io/legado/app/model/analyzeRule/AnalyzeRule.kt
index 530dcb33b..57b867219 100644
--- a/app/src/main/java/io/legado/app/model/analyzeRule/AnalyzeRule.kt
+++ b/app/src/main/java/io/legado/app/model/analyzeRule/AnalyzeRule.kt
@@ -406,6 +406,9 @@ class AnalyzeRule(var book: BaseBook? = null) : JsExtensions {
         internal val putMap = HashMap<String, String>()
         private val ruleParam = ArrayList<String>()
         private val ruleType = ArrayList<Int>()
+        private val getRuleType = -2
+        private val jsRuleType = -1
+        private val defaultRuleType = 0
 
         init {
             this.mode = mainMode
@@ -444,51 +447,60 @@ class AnalyzeRule(var book: BaseBook? = null) : JsExtensions {
                     else -> rule = ruleStr
                 }
             }
-            //分离put
-            rule = splitPutRule(rule, putMap)
-            //@get,{{ }}, 拆分
-            var start = 0
-            var tmp: String
-            val evalMatcher = evalPattern.matcher(rule)
-            while (evalMatcher.find()) {
-                if (evalMatcher.start() > start) {
-                    tmp = rule.substring(start, evalMatcher.start())
-                    splitRegex(tmp)
-                }
-                tmp = evalMatcher.group()
-                when {
-                    tmp.startsWith("@get:", true) -> {
-                        ruleType.add(-2)
-                        ruleParam.add(tmp.substring(6, tmp.lastIndex))
-                    }
-                    tmp.startsWith("{{") -> {
-                        ruleType.add(-1)
-                        ruleParam.add(tmp.substring(2, tmp.length - 2))
-                    }
-                    else -> {
+            if (mode == Mode.Js) {
+                ruleType.add(defaultRuleType)
+                ruleParam.add(rule)
+            } else {
+                //分离put
+                rule = splitPutRule(rule, putMap)
+                //@get,{{ }}, 拆分
+                var start = 0
+                var tmp: String
+                val evalMatcher = evalPattern.matcher(rule)
+                while (evalMatcher.find()) {
+                    if (evalMatcher.start() > start) {
+                        tmp = rule.substring(start, evalMatcher.start())
+                        if (start == 0 && !tmp.contains("##")) {
+                            mode = Mode.Regex
+                        }
                         splitRegex(tmp)
                     }
+                    tmp = evalMatcher.group()
+                    when {
+                        tmp.startsWith("@get:", true) -> {
+                            ruleType.add(getRuleType)
+                            ruleParam.add(tmp.substring(6, tmp.lastIndex))
+                        }
+                        tmp.startsWith("{{") -> {
+                            ruleType.add(jsRuleType)
+                            ruleParam.add(tmp.substring(2, tmp.length - 2))
+                        }
+                        else -> {
+                            splitRegex(tmp)
+                        }
+                    }
+                    start = evalMatcher.end()
+                }
+                if (rule.length > start) {
+                    tmp = rule.substring(start)
+                    splitRegex(tmp)
                 }
-                start = evalMatcher.end()
-            }
-            if (rule.length > start) {
-                tmp = rule.substring(start)
-                splitRegex(tmp)
             }
         }
 
+        /**
+         * 拆分\$\d{1,2}
+         */
         private fun splitRegex(ruleStr: String) {
             var start = 0
             var tmp: String
             val ruleStrArray = ruleStr.split("##")
             val regexMatcher = regexPattern.matcher(ruleStrArray[0])
             while (regexMatcher.find()) {
-                if (mode != Mode.Js) {
-                    mode = Mode.Regex
-                }
+                mode = Mode.Regex
                 if (regexMatcher.start() > start) {
                     tmp = ruleStr.substring(start, regexMatcher.start())
-                    ruleType.add(0)
+                    ruleType.add(defaultRuleType)
                     ruleParam.add(tmp)
                 }
                 tmp = regexMatcher.group()
@@ -498,7 +510,7 @@ class AnalyzeRule(var book: BaseBook? = null) : JsExtensions {
             }
             if (ruleStr.length > start) {
                 tmp = ruleStr.substring(start)
-                ruleType.add(0)
+                ruleType.add(defaultRuleType)
                 ruleParam.add(tmp)
             }
         }
@@ -513,7 +525,7 @@ class AnalyzeRule(var book: BaseBook? = null) : JsExtensions {
                 while (index-- > 0) {
                     val regType = ruleType[index]
                     when {
-                        regType > 0 -> {
+                        regType > defaultRuleType -> {
                             @Suppress("UNCHECKED_CAST")
                             val resultList = result as? List<String?>
                             if (resultList != null) {
@@ -526,7 +538,7 @@ class AnalyzeRule(var book: BaseBook? = null) : JsExtensions {
                                 infoVal.insert(0, ruleParam[index])
                             }
                         }
-                        regType == -1 -> {
+                        regType == jsRuleType -> {
                             if (isRule(ruleParam[index])) {
                                 getString(arrayListOf(SourceRule(ruleParam[index]))).let {
                                     infoVal.insert(0, it)
@@ -544,7 +556,7 @@ class AnalyzeRule(var book: BaseBook? = null) : JsExtensions {
                                 }
                             }
                         }
-                        regType == -2 -> {
+                        regType == getRuleType -> {
                             infoVal.insert(0, get(ruleParam[index]))
                         }
                         else -> infoVal.insert(0, ruleParam[index])
@@ -652,7 +664,7 @@ class AnalyzeRule(var book: BaseBook? = null) : JsExtensions {
         private val getPattern = Pattern.compile("@get:\\{([^}]+?)\\}", Pattern.CASE_INSENSITIVE)
         private val evalPattern =
             Pattern.compile("@get:\\{[^}]+?\\}|\\{\\{[\\w\\W]*?\\}\\}", Pattern.CASE_INSENSITIVE)
-        private val regexPattern = Pattern.compile("\\\$\\d{1,2}")
+        private val regexPattern = Pattern.compile("\\$\\d{1,2}")
     }
 
 }
diff --git a/app/src/main/res/xml/pref_config_other.xml b/app/src/main/res/xml/pref_config_other.xml
index f4f28ca94..0bc8ae32c 100644
--- a/app/src/main/res/xml/pref_config_other.xml
+++ b/app/src/main/res/xml/pref_config_other.xml
@@ -52,7 +52,7 @@
         app:layout="@layout/view_preference_category">
 
         <io.legado.app.ui.widget.prefs.SwitchPreference
-            android:defaultValue="false"
+            android:defaultValue="true"
             android:key="@string/pk_background_verification"
             android:summary="@string/ps_background_verification"
             android:title="@string/pt_background_verification"