diff --git a/docs/mindspore/source_zh_cn/design/programming_paradigm.ipynb b/docs/mindspore/source_zh_cn/design/programming_paradigm.ipynb
index 31c31ac06777ad35c42fa2ef1660536cea0bcad6..0c65be8394fc158f7dfd60eeab09110a3eb511d1 100644
--- a/docs/mindspore/source_zh_cn/design/programming_paradigm.ipynb
+++ b/docs/mindspore/source_zh_cn/design/programming_paradigm.ipynb
@@ -74,6 +74,7 @@
     "```python\n",
     "from mindspore import nn, Parameter\n",
     "from mindspore.common.initializer import initializer\n",
+    "import mindspore.ops as ops\n",
     "\n",
     "class Linear(nn.Cell):\n",
     "    def __init__(self, in_features, out_features, has_bias): # class constructor (code)\n",