diff --git "a/batch/CF\344\274\230\351\200\211IP-ANSI.bat" "b/batch/CF\344\274\230\351\200\211IP-ANSI.bat"
index 18fe3e0..3c43ecd 100644
--- "a/batch/CF\344\274\230\351\200\211IP-ANSI.bat"
+++ "b/batch/CF\344\274\230\351\200\211IP-ANSI.bat"
@@ -151,8 +151,9 @@ mkdir rtt
 for /f "tokens=2 delims=:" %%i in ('find /c /v "" ip.txt') do (
 set /a ipnum=%%i
 )
-if !tasknum! GTR !ipnum! set /a tasknum=ipnum
-set /a iplist=ipnum/tasknum
+if !tasknum! GTR !ipnum! set /a iplist=1
+set /a doubletasknum=tasknum*2
+if !ipnum! LSS !doubletasknum! (set /a iplist=2) else (set /a iplist=ipnum/tasknum)
 set /a a=1
 set /a b=1
 for /f "delims=" %%i in (ip.txt) do (
@@ -165,7 +166,7 @@ title RTT
 goto rtttest
 
 :rtttest
-if !a! NEQ !b! (start /b RTT.bat !a!>nul&set /a a=a+1&goto rtttest) else (goto rttstatus)
+if !a! NEQ !b! (start /b rtt.bat !a!>nul&set /a a=a+1&goto rtttest) else (goto rttstatus)
 
 :rttstatus
 timeout /T 2 /NOBREAK>nul
diff --git "a/batch/CF\344\274\230\351\200\211IP-UTF8.bat" "b/batch/CF\344\274\230\351\200\211IP-UTF8.bat"
index f99ea50..5124edb 100644
--- "a/batch/CF\344\274\230\351\200\211IP-UTF8.bat"
+++ "b/batch/CF\344\274\230\351\200\211IP-UTF8.bat"
@@ -151,8 +151,9 @@ mkdir rtt
 for /f "tokens=2 delims=:" %%i in ('find /c /v "" ip.txt') do (
 set /a ipnum=%%i
 )
-if !tasknum! GTR !ipnum! set /a tasknum=ipnum
-set /a iplist=ipnum/tasknum
+if !tasknum! GTR !ipnum! set /a iplist=1
+set /a doubletasknum=tasknum*2
+if !ipnum! LSS !doubletasknum! (set /a iplist=2) else (set /a iplist=ipnum/tasknum)
 set /a a=1
 set /a b=1
 for /f "delims=" %%i in (ip.txt) do (
@@ -165,7 +166,7 @@ title RTT测试中
 goto rtttest
 
 :rtttest
-if !a! NEQ !b! (start /b RTT.bat !a!>nul&set /a a=a+1&goto rtttest) else (goto rttstatus)
+if !a! NEQ !b! (start /b rtt.bat !a!>nul&set /a a=a+1&goto rtttest) else (goto rttstatus)
 
 :rttstatus
 timeout /T 2 /NOBREAK>nul
diff --git a/shell/cf.sh b/shell/cf.sh
index ddb4024..f974df4 100644
--- a/shell/cf.sh
+++ b/shell/cf.sh
@@ -224,11 +224,21 @@ do
 		fi
 		rm -rf meta.txt data.txt
 		ipnum=$(cat anycast.txt | wc -l)
+		if [ $tasknum == 0 ]
+		then
+			tasknum=1
+		fi
 		if [ $ipnum -lt $tasknum ]
 		then
-			tasknum=ipnum
+			 iplist=1
+		fi
+		doubletasknum=$[$tasknum*2]
+		if [ $ipnum -lt $doubletasknum ]
+		then
+			iplist=2
+		else
+			iplist=ipnum/tasknum
 		fi
-		iplist=ipnum/tasknum
 		declare -i a=1
 		declare -i b=1
 		for i in `cat anycast.txt`
@@ -261,7 +271,7 @@ do
 		while true
 		do
 			sleep 2
-			n=$(ls rtt | grep txt | grep -v "grep" | wc -l)
+			n=$(ls rtt | grep txt | wc -l)
 			if [ $n -ne 0 ]
 			then
 				echo $(date +'%H:%M:%S') 等待RTT测试结束,剩余进程数 $n