fix bug

bin/utils/base.sh

@@ -119,6 +119,10 @@ url_encode() {
     echo "$encoded"
 }
 
-
-
-
+# 检查 Bash 是否已安装
+check_bash_installed() {
+  if ! command -v bash &> /dev/null; then
+    echo "错误: Bash 未安装！"
+    return 1  
+  fi
+}