diff --git a/app/src/main/java/io/legado/app/ui/book/source/edit/BookSourceEditActivity.kt b/app/src/main/java/io/legado/app/ui/book/source/edit/BookSourceEditActivity.kt
index d99518f5c..5ff78d0b7 100644
--- a/app/src/main/java/io/legado/app/ui/book/source/edit/BookSourceEditActivity.kt
+++ b/app/src/main/java/io/legado/app/ui/book/source/edit/BookSourceEditActivity.kt
@@ -382,7 +382,7 @@ class BookSourceEditActivity :
         selector(getString(R.string.help), items) { _, index ->
             when (index) {
                 0 -> insertText(AppConst.urlOption)
-                1 -> openUrl(getString(R.string.source_rule_url))
+                1 -> openUrl("https://alanskycn.gitee.io/teachme/Rule/source.html")
                 2 -> showRegexHelp()
             }
         }
diff --git a/app/src/main/java/io/legado/app/ui/replace/edit/ReplaceEditActivity.kt b/app/src/main/java/io/legado/app/ui/replace/edit/ReplaceEditActivity.kt
index d690a0b74..932ecb952 100644
--- a/app/src/main/java/io/legado/app/ui/replace/edit/ReplaceEditActivity.kt
+++ b/app/src/main/java/io/legado/app/ui/replace/edit/ReplaceEditActivity.kt
@@ -22,6 +22,7 @@ import io.legado.app.utils.postEvent
 import kotlinx.android.synthetic.main.activity_replace_edit.*
 import org.jetbrains.anko.displayMetrics
 import org.jetbrains.anko.sdk27.listeners.onClick
+import org.jetbrains.anko.selector
 import org.jetbrains.anko.toast
 import kotlin.math.abs
 
@@ -64,8 +65,7 @@ class ReplaceEditActivity :
             upReplaceView(it)
         }
         iv_help.onClick {
-            val mdText = String(assets.open("help/regex.md").readBytes())
-            TextDialog.show(supportFragmentManager, mdText, TextDialog.MD)
+            showRegexHelp()
         }
     }
 
@@ -128,13 +128,31 @@ class ReplaceEditActivity :
 
     override fun sendText(text: String) {
         if (text == AppConst.keyboardToolChars[0]) {
-            val view = window?.decorView?.findFocus()
-            view?.clearFocus()
+            showHelpDialog()
         } else {
             insertText(text)
         }
     }
 
+    private fun showHelpDialog() {
+        val items = arrayListOf("替换净化教程", "正则教程")
+        selector(getString(R.string.help), items) { _, index ->
+            when (index) {
+                0 -> showReplaceHelp()
+                1 -> showRegexHelp()
+            }
+        }
+    }
+
+    private fun showReplaceHelp() {
+
+    }
+
+    private fun showRegexHelp() {
+        val mdText = String(assets.open("help/regex.md").readBytes())
+        TextDialog.show(supportFragmentManager, mdText, TextDialog.MD)
+    }
+
     private fun showKeyboardTopPopupWindow() {
         mSoftKeyboardTool?.let {
             if (it.isShowing) return
diff --git a/app/src/main/java/io/legado/app/ui/rss/source/edit/RssSourceEditActivity.kt b/app/src/main/java/io/legado/app/ui/rss/source/edit/RssSourceEditActivity.kt
index cf21ca604..a1f2119d2 100644
--- a/app/src/main/java/io/legado/app/ui/rss/source/edit/RssSourceEditActivity.kt
+++ b/app/src/main/java/io/legado/app/ui/rss/source/edit/RssSourceEditActivity.kt
@@ -20,6 +20,7 @@ import io.legado.app.lib.theme.ATH
 import io.legado.app.ui.qrcode.QrCodeActivity
 import io.legado.app.ui.rss.source.debug.RssSourceDebugActivity
 import io.legado.app.ui.widget.KeyboardToolPop
+import io.legado.app.ui.widget.dialog.TextDialog
 import io.legado.app.utils.*
 import kotlinx.android.synthetic.main.activity_rss_source_edit.*
 import org.jetbrains.anko.*
@@ -187,12 +188,28 @@ class RssSourceEditActivity :
 
     override fun sendText(text: String) {
         if (text == AppConst.keyboardToolChars[0]) {
-            insertText(AppConst.urlOption)
+            showHelpDialog()
         } else {
             insertText(text)
         }
     }
 
+    private fun showHelpDialog() {
+        val items = arrayListOf("插入URL参数", "订阅源教程", "正则教程")
+        selector(getString(R.string.help), items) { _, index ->
+            when (index) {
+                0 -> insertText(AppConst.urlOption)
+                1 -> openUrl("https://alanskycn.gitee.io/teachme/Rule/rss.html")
+                2 -> showRegexHelp()
+            }
+        }
+    }
+
+    private fun showRegexHelp() {
+        val mdText = String(assets.open("help/regex.md").readBytes())
+        TextDialog.show(supportFragmentManager, mdText, TextDialog.MD)
+    }
+
     private fun showKeyboardTopPopupWindow() {
         mSoftKeyboardTool?.let {
             if (it.isShowing) return