diff --git a/pyproject.toml b/pyproject.toml
index db4a2af..1906c01 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -93,7 +93,10 @@ packages = ["src/pyflowx"]
 pyflowx = { workspace = true }
 
 [dependency-groups]
-dev = ["pyflowx[dev,office,llm]"]
+dev = [
+    "pyflowx[dev,office,llm]",
+    "pysnooper>=1.2.3",
+]
 
 [tool.coverage.run]
 branch      = true
diff --git a/src/pyflowx/cli/envdev.py b/src/pyflowx/cli/envdev.py
index 09f2e6e..04241b6 100644
--- a/src/pyflowx/cli/envdev.py
+++ b/src/pyflowx/cli/envdev.py
@@ -17,23 +17,26 @@ INSTALL_MIRROR_SCRIPT: str = "sudo bash /tmp/linuxmirrors.sh"
 # ============================================================================
 # Python 配置
 # ============================================================================
-PyMirrorType = Literal["tsinghua", "aliyun"]
+PyMirrorType = Literal["tsinghua", "aliyun", "huaweicloud", "ustc", "zju"]
 
 PIP_INDEX_URLS: dict[PyMirrorType, str] = {
     "tsinghua": "https://pypi.tuna.tsinghua.edu.cn/simple",
     "aliyun": "https://mirrors.aliyun.com/pypi/simple/",
+    "huaweicloud": "https://mirrors.huaweicloud.com/repository/pypi/simple/",
+    "ustc": "https://pypi.mirrors.ustc.edu.cn/simple/",
+    "zju": "https://mirrors.zju.edu.cn/pypi/simple/",
 }
 
 PIP_TRUSTED_HOSTS: dict[PyMirrorType, str] = {
     "tsinghua": "pypi.tuna.tsinghua.edu.cn",
     "aliyun": "mirrors.aliyun.com",
+    "huaweicloud": "mirrors.huaweicloud.com",
+    "ustc": "pypi.mirrors.ustc.edu.cn",
+    "zju": "mirrors.zju.edu.cn",
 }
 PIP_CONFIG_PATH = Path.home() / ".pip" / "pip.conf" if BuiltinConditions.IS_LINUX() else Path.home() / "pip" / "pip.ini"
 
-UV_INDEX_URLS: dict[PyMirrorType, str] = {
-    "tsinghua": "https://pypi.tuna.tsinghua.edu.cn/simple",
-    "aliyun": "https://mirrors.aliyun.com/pypi/simple/",
-}
+UV_INDEX_URLS = PIP_INDEX_URLS
 UV_PYTHON_INSTALL_MIRROR: str = "https://registry.npmmirror.com/-/binary/python-build-standalone"
 
 # ============================================================================
@@ -155,7 +158,7 @@ def main() -> None:
 
     # 使用 conditions 自动控制任务执行
     graph = px.Graph.from_specs([
-        # 系统镜像配置（仅 Linux 且未配置）
+        # 系统镜像配置（仅 Linux 且未配置国内镜像）
         px.TaskSpec(
             "download_mirror",
             cmd=DOWNLOAD_MIRROR_SCRIPT,
@@ -163,9 +166,14 @@ def main() -> None:
                 BuiltinConditions.IS_LINUX(),
                 BuiltinConditions.NOT(
                     BuiltinConditions.OR(
-                        BuiltinConditions.FILE_CONTENT_EXISTS("/etc/apt/sources.list", "tsinghua"),
-                        BuiltinConditions.FILE_CONTENT_EXISTS("/etc/apt/sources.list", "aliyun"),
-                        BuiltinConditions.FILE_CONTENT_EXISTS("/etc/apt/sources.list", "ustc"),
+                        *[
+                            BuiltinConditions.FILE_CONTENT_EXISTS(f, m)
+                            for f in [
+                                "/etc/apt/sources.list",
+                                "/etc/apt/sources.list.d/ubuntu.sources",
+                            ]
+                            for m in get_args(PyMirrorType)
+                        ],
                     )
                 ),
             ),
diff --git a/src/pyflowx/executors.py b/src/pyflowx/executors.py
index 4a6207c..bc93471 100644
--- a/src/pyflowx/executors.py
+++ b/src/pyflowx/executors.py
@@ -130,6 +130,7 @@ def _evaluate_conditions(spec: TaskSpec[Any], context: Mapping[str, Any]) -> str
             name = getattr(condition, "__name__", None) or "匿名条件(执行错误)"
             failed_conditions.append(name)
             continue
+
         if not ok:
             failed_conditions.append(getattr(condition, "__name__", None) or "匿名条件")
 
diff --git a/src/pyflowx/task.py b/src/pyflowx/task.py
index 1934915..d3bcea5 100644
--- a/src/pyflowx/task.py
+++ b/src/pyflowx/task.py
@@ -31,8 +31,8 @@ from typing import (
     Callable,
     ContextManager,
     Coroutine,
+    Generator,
     Generic,
-    Iterator,
     List,
     Mapping,
     Union,
@@ -367,7 +367,7 @@ class TaskSpec(Generic[T]):
 def _env_and_cwd(
     env: Mapping[str, str] | None,
     cwd: Path | None,
-) -> Iterator[None]:
+) -> Generator[None, None, None]:
     """临时设置环境变量与工作目录。"""
     saved_env: dict[str, str] = {}
     saved_cwd: str | None = None
diff --git a/uv.lock b/uv.lock
index eda6d24..0fbb470 100644
--- a/uv.lock
+++ b/uv.lock
@@ -5603,7 +5603,7 @@ pycountry = [
 
 [[package]]
 name = "pyflowx"
-version = "0.2.8"
+version = "0.2.9"
 source = { editable = "." }
 dependencies = [
     { name = "graphlib-backport", marker = "python_full_version < '3.9'" },
@@ -5658,6 +5658,7 @@ office = [
 [package.dev-dependencies]
 dev = [
     { name = "pyflowx", extra = ["dev", "llm", "office"] },
+    { name = "pysnooper" },
 ]
 
 [package.metadata]
@@ -5686,7 +5687,10 @@ requires-dist = [
 provides-extras = ["dev", "llm", "office"]
 
 [package.metadata.requires-dev]
-dev = [{ name = "pyflowx", extras = ["dev", "office", "llm"], editable = "." }]
+dev = [
+    { name = "pyflowx", extras = ["dev", "office", "llm"], editable = "." },
+    { name = "pysnooper", specifier = ">=1.2.3" },
+]
 
 [[package]]
 name = "pygments"
@@ -6003,6 +6007,15 @@ wheels = [
     { url = "https://mirrors.aliyun.com/pypi/packages/42/3d/4c6bcb3d456835f51445d3662a428f56c3ea5643ec798c577030ae34298c/pyrefly-1.1.1-py3-none-win_arm64.whl", hash = "sha256:83baf0db71e172665db1fca0ced50b8f7773f5192ca57e8ac6773a772b6d2fc5" },
 ]
 
+[[package]]
+name = "pysnooper"
+version = "1.2.3"
+source = { registry = "https://mirrors.aliyun.com/pypi/simple/" }
+sdist = { url = "https://mirrors.aliyun.com/pypi/packages/d2/4a/be3c144f58de6b78911c417cc4a3b3fe5eb6d13cae4c12daf3ca17a8d473/pysnooper-1.2.3.tar.gz", hash = "sha256:1fa1425444a7af45108aaed860b5ca8b62b25bba25b0b037c059ba353d8f1e74" }
+wheels = [
+    { url = "https://mirrors.aliyun.com/pypi/packages/69/87/df62c8a998216e6749b67d548dae0967906036c61457510ef49667927c49/PySnooper-1.2.3-py2.py3-none-any.whl", hash = "sha256:546372f0e72da89f8d1b89e758b7c05a478d65288569a1ca2cc1620e7b1b1944" },
+]
+
 [[package]]
 name = "pytesseract"
 version = "0.3.13"