[note]中文文档【形状】中给出了各参数的数据类型，英文文档中没有,本次pr对此修复 (#49594)

python/paddle/nn/layer/common.py

@@ -114,8 +114,8 @@ class Linear(Layer):
         **bias** (Parameter): the learnable bias of this layer.
 
     Shape:
-        - input: Multi-dimentional tensor with shape :math:`[batch\_size, *, in\_features]` .
-        - output: Multi-dimentional tensor with shape :math:`[batch\_size, *, out\_features]` .
+        - input: Multi-dimentional tensor with shape :math:`[batch\_size, *, in\_features]` . Its data types are float16, float32, float64 ,The default is float32 .
+        - output: Multi-dimentional tensor with shape :math:`[batch\_size, *, out\_features]` . The data type is the same as the input .
 
     Examples:
         .. code-block:: python