diff --git a/src/Cli.php b/src/Cli.php
new file mode 100644
index 0000000..4f8ec01
--- /dev/null
+++ b/src/Cli.php
@@ -0,0 +1,33 @@
+<?php
+
+function genStr(int $length, string $fillStr = ' '): string { // generate a string of specified length
+    return str_pad('', $length, $fillStr);
+}
+
+function lenUtf8(string $str): int { // get string length (Chinese -> 2)
+//    preg_match_all('/./us', $str, $match);
+//    return count($match[0]);
+    return strlen(iconv('utf-8', 'gb2312', $str));
+}
+
+function showKeys(array $kmsKeys, bool $isGbk = false): void { // show kms keys in shell
+    $ret = PHP_EOL;
+    foreach ($kmsKeys as $title => $keys) {
+        $length = 0;
+        foreach ($keys as $caption => $key) { // found the longest caption
+            $length = ($length < lenUtf8($caption)) ? lenUtf8($caption) : $length;
+        }
+        $ret .= genStr(floor(($length - lenUtf8($title) + 36) / 2)) . $title . PHP_EOL; // add title
+        $ret .= '┏' . genStr($length + 34, '-') . '┓' . PHP_EOL;
+        foreach ($keys as $caption => $key) { // add all rows
+            $ret .= '| ' . $caption . genStr($length - lenUtf8($caption)) . ' | ' . $key . ' |' . PHP_EOL;
+        }
+        $ret .= '┗' . genStr($length + 34, '-') . '┛' . PHP_EOL . PHP_EOL;
+    }
+    echo $isGbk ? iconv('utf-8', 'gb2312', $ret) : $ret; // utf-8 or gbk
+}
+
+$keyAsset = json_decode(file_get_contents('../assets/kms-keys.json'), true);
+showKeys($keyAsset['win']);
+echo '========================================================================================' . PHP_EOL;
+showKeys(array_reverse($keyAsset['win-server']));