diff --git a/app/src/main/java/io/legado/app/model/WebBook.kt b/app/src/main/java/io/legado/app/model/WebBook.kt
index 5318a812d..ddbf15523 100644
--- a/app/src/main/java/io/legado/app/model/WebBook.kt
+++ b/app/src/main/java/io/legado/app/model/WebBook.kt
@@ -43,11 +43,13 @@ class WebBook(private val bookSource: BookSource) {
         }
     }
 
-    fun getChapterList(book: Book, success: (List<BookChapter>) -> Unit) {
-        Coroutine.async {
+    fun getChapterList(book: Book): Coroutine<List<BookChapter>> {
+        return Coroutine.async {
             val analyzeUrl = AnalyzeUrl(book = book, ruleUrl = book.tocUrl)
             val response = analyzeUrl.getResponseAsync().await()
-            BookChapterList.analyzeChapterList(this, book, response, bookSource, analyzeUrl, success)
+            BookChapterList.analyzeChapterList(this, book, response, bookSource, analyzeUrl)
         }
     }
+
+
 }
\ No newline at end of file
diff --git a/app/src/main/java/io/legado/app/model/analyzeRule/AnalyzeUrl.kt b/app/src/main/java/io/legado/app/model/analyzeRule/AnalyzeUrl.kt
index 020547d0a..8f0ddb328 100644
--- a/app/src/main/java/io/legado/app/model/analyzeRule/AnalyzeUrl.kt
+++ b/app/src/main/java/io/legado/app/model/analyzeRule/AnalyzeUrl.kt
@@ -89,8 +89,7 @@ class AnalyzeUrl(
             val matcher = pagePattern.matcher(ruleUrl)
             while (matcher.find()) {
                 val pages =
-                    matcher.group(1).split(",".toRegex()).dropLastWhile { it.isEmpty() }
-                        .toTypedArray()
+                    matcher.group(1).splitNotBlank(",")
                 ruleUrl = if (page <= pages.size) {
                     ruleUrl.replace(matcher.group(), pages[page - 1].trim { it <= ' ' })
                 } else {
@@ -148,7 +147,7 @@ class AnalyzeUrl(
         }
         when (method) {
             Method.GET -> {
-                urlArray = url.split("\\?".toRegex())
+                urlArray = url.split("?")
                 url = urlArray[0]
                 if (urlArray.size > 1) {
                     analyzeFields(urlArray[1])
@@ -179,9 +178,9 @@ class AnalyzeUrl(
     @Throws(Exception::class)
     private fun analyzeFields(fieldsTxt: String) {
         queryStr = fieldsTxt
-        val queryS = fieldsTxt.split("&".toRegex()).dropLastWhile { it.isEmpty() }.toTypedArray()
+        val queryS = fieldsTxt.splitNotBlank("&")
         for (query in queryS) {
-            val queryM = query.split("=".toRegex()).dropLastWhile { it.isEmpty() }.toTypedArray()
+            val queryM = query.splitNotBlank("=")
             val value = if (queryM.size > 1) queryM[1] else ""
             if (TextUtils.isEmpty(charset)) {
                 if (NetworkUtils.hasUrlEncoded(value)) {
diff --git a/app/src/main/java/io/legado/app/model/webbook/BookChapterList.kt b/app/src/main/java/io/legado/app/model/webbook/BookChapterList.kt
index ad2d8694c..61afa35c1 100644
--- a/app/src/main/java/io/legado/app/model/webbook/BookChapterList.kt
+++ b/app/src/main/java/io/legado/app/model/webbook/BookChapterList.kt
@@ -10,20 +10,18 @@ import io.legado.app.model.analyzeRule.AnalyzeRule
 import io.legado.app.model.analyzeRule.AnalyzeUrl
 import io.legado.app.utils.NetworkUtils
 import kotlinx.coroutines.CoroutineScope
-import kotlinx.coroutines.launch
+import kotlinx.coroutines.withContext
 import retrofit2.Response
-import java.util.concurrent.atomic.AtomicInteger
 
 object BookChapterList {
 
-    fun analyzeChapterList(
+    suspend fun analyzeChapterList(
         coroutineScope: CoroutineScope,
         book: Book,
         response: Response<String>,
         bookSource: BookSource,
-        analyzeUrl: AnalyzeUrl,
-        success: (List<BookChapter>) -> Unit
-    ) {
+        analyzeUrl: AnalyzeUrl
+    ): List<BookChapter> {
         val chapterList = arrayListOf<BookChapter>()
         val baseUrl: String = NetworkUtils.getUrl(response)
         val body: String? = response.body()
@@ -63,35 +61,27 @@ object BookChapterList {
                     }
             }
             if (reverse) chapterList.reverse()
-            success(chapterList)
         } else if (chapterData.nextUrl.size > 1) {
-            val chapterDataList = arrayListOf<ChapterData<String>>()
             for (item in chapterData.nextUrl) {
                 if (!nextUrlList.contains(item)) {
-                    val data = ChapterData(nextUrl = item)
-                    chapterDataList.add(data)
-                }
-            }
-            val successCount = AtomicInteger(0)
-            for (item in chapterDataList) {
-                coroutineScope.launch {
-                    val nextResponse = AnalyzeUrl(ruleUrl = item.nextUrl, book = book).getResponseAsync().await()
-                    val nextChapterData =
-                        analyzeChapterList(nextResponse.body() ?: "", item.nextUrl, tocRule, listRule, book)
-                    item.chapterList = nextChapterData.chapterList
-                    val nowCount = successCount.incrementAndGet()
-                    if (nowCount == chapterDataList.size) {
-                        for (newItem in chapterDataList) {
-                            newItem.chapterList?.let {
-                                chapterList.addAll(it)
-                            }
+                    withContext(coroutineScope.coroutineContext) {
+                        val nextResponse = AnalyzeUrl(ruleUrl = item, book = book).getResponseAsync().await()
+                        val nextChapterData = analyzeChapterList(
+                            nextResponse.body() ?: "",
+                            item,
+                            tocRule,
+                            listRule,
+                            book
+                        )
+                        nextChapterData.chapterList?.let {
+                            chapterList.addAll(it)
                         }
-                        if (reverse) chapterList.reverse()
-                        success(chapterList)
                     }
                 }
             }
+            if (reverse) chapterList.reverse()
         }
+        return chapterList
     }
 
 
diff --git a/app/src/main/java/io/legado/app/ui/search/SearchViewModel.kt b/app/src/main/java/io/legado/app/ui/search/SearchViewModel.kt
index 491f9f7af..a849dd80b 100644
--- a/app/src/main/java/io/legado/app/ui/search/SearchViewModel.kt
+++ b/app/src/main/java/io/legado/app/ui/search/SearchViewModel.kt
@@ -8,9 +8,11 @@ import io.legado.app.base.BaseViewModel
 import io.legado.app.data.api.CommonHttpApi
 import io.legado.app.data.entities.SearchBook
 import io.legado.app.help.http.HttpHelper
+import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.channels.Channel
 import kotlinx.coroutines.delay
 import kotlinx.coroutines.launch
+import kotlinx.coroutines.withContext
 
 class SearchViewModel(application: Application) : BaseViewModel(application) {
 
@@ -25,11 +27,17 @@ class SearchViewModel(application: Application) : BaseViewModel(application) {
             }
         }
 
+
         val c = execute {
+
+            Log.e("TAG1", "start")
+
             val response: String = HttpHelper.getApiService<CommonHttpApi>(
                 "http://www.baidu.com"
             ).get("http://www.baidu.com").await()
 
+            Log.e("TAG1", "result: $response")
+
             delay(2000L)
 
             response
@@ -80,6 +88,27 @@ class SearchViewModel(application: Application) : BaseViewModel(application) {
 
 //            c.cancel()
         }
+
+
+        launch {
+            val list = test()
+            println("size: ${list.size}   $list")
+        }
+
+
+    }
+
+    suspend fun test(): MutableList<String> {
+        val list = mutableListOf<String>()
+        repeat(10) {
+            withContext(Dispatchers.IO) {
+                val response: String = HttpHelper.getApiService<CommonHttpApi>(
+                    "http://www.baidu.com"
+                ).get("http://www.baidu.com").await()
+                list.add(response)
+            }
+        }
+        return list
     }
 
 }