From 979f67f6fab82c0be851605189c5ad6241743398 Mon Sep 17 00:00:00 2001
From: yixin <2050485123@qq.com>
Date: Wed, 25 Dec 2024 10:34:17 +0800
Subject: [PATCH] _extends\graph_kernel\expanders\erfc.py

---
 .../_extends/graph_kernel/expanders/erfc.py   | 24 +++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/src/mindspore2022/mindspore/python/mindspore/_extends/graph_kernel/expanders/erfc.py b/src/mindspore2022/mindspore/python/mindspore/_extends/graph_kernel/expanders/erfc.py
index 7e97c455..198120d6 100644
--- a/src/mindspore2022/mindspore/python/mindspore/_extends/graph_kernel/expanders/erfc.py
+++ b/src/mindspore2022/mindspore/python/mindspore/_extends/graph_kernel/expanders/erfc.py
@@ -16,20 +16,44 @@
 from ._utils import Expander
 
 
+# 定义一个Erfc类，继承自Expander类
 class Erfc(Expander):
     """Erfc expander"""
 
     def _expand(self, graph_builder):
+        """
+        对输入数据进行扩展处理。
+
+        Args:
+            graph_builder (GraphBuilder): 图构建器对象。
+
+        Returns:
+            Tensor: 扩展处理后的结果。
+
+        """
+        # 获取输入数据
         input_x = self.inputs[0]
+        # 初始化结果
         result = None
+        # 如果输入数据的类型是float16
         if input_x.dtype == "float16":
+            # 创建一个float32类型的常量1
             const_one = graph_builder.value("float32", 1)
+            # 将输入数据转换为float32类型
             input_x = graph_builder.emit('Cast', [input_x], attrs={'dst_type': "float32"})
+            # 计算输入数据的erf值
             erf_result = graph_builder.emit('Erf', [input_x])
+            # 计算结果
             result = graph_builder.emit('Sub', [const_one, erf_result])
+            # 将结果转换为float16类型
             result = graph_builder.emit('Cast', [result], attrs={'dst_type': "float16"})
+            # 返回结果
             return result
+        # 创建一个与输入数据类型相同的常量1
         const_one = graph_builder.value(input_x.dtype, 1)
+        # 计算输入数据的erf值
         erf_result = graph_builder.emit('Erf', [input_x])
+        # 计算结果
         result = graph_builder.emit('Sub', [const_one, erf_result])
+        # 返回结果
         return result