update setup.py

=5.9

+Requirement already satisfied: PyQt5 in /home/yan/anaconda3/lib/python3.8/site-packages (5.15.10)
+Requirement already satisfied: PyQt5-sip<13,>=12.13 in /home/yan/anaconda3/lib/python3.8/site-packages (from PyQt5) (12.13.0)
+Requirement already satisfied: PyQt5-Qt5>=5.15.2 in /home/yan/anaconda3/lib/python3.8/site-packages (from PyQt5) (5.15.2)

setup.py

 import setuptools
 
-with open("README.md", "r") as fh:
-    long_description = fh.read()
+# 读取README.md作为长描述
+with open("README.md", "r") as f:
+    long_description = f.read()
+
+# 读取依赖列表requirements.txt
+# 忽略#开头或者版本号不明确指定的条目
+with open("requirements.txt", "r") as f:
+    requirements = [
+        req.strip()
+        for req in f.readlines()
+        if not req.startswith("#") and req.__contains__("~=") 
+    ]
 
 setuptools.setup(
     name='csst_ifs_sim',