修复了导出为excel时，因为相同名称文件重复导致的bug。

.gitignore

@@ -0,0 +1,156 @@
+# Byte-compiled / optimized / DLL files
+__pycache__/
+*.py[cod]
+*$py.class
+
+# personal config
+document/
+*.txt
+pubmedsoso*.xls
+test.py
+pubmedsql
+
+
+# C extensions
+*.so
+
+# Distribution / packaging
+.Python
+build/
+develop-eggs/
+dist/
+downloads/
+eggs/
+.eggs/
+lib/
+lib64/
+parts/
+sdist/
+var/
+wheels/
+share/python-wheels/
+*.egg-info/
+.installed.cfg
+*.egg
+MANIFEST
+
+# PyInstaller
+#  Usually these files are written by a python script from a template
+#  before PyInstaller builds the exe, so as to inject date/other infos into it.
+*.manifest
+*.spec
+
+# Installer logs
+pip-log.txt
+pip-delete-this-directory.txt
+
+# Unit test / coverage reports
+htmlcov/
+.tox/
+.nox/
+.coverage
+.coverage.*
+.cache
+nosetests.xml
+coverage.xml
+*.cover
+*.py,cover
+.hypothesis/
+.pytest_cache/
+cover/
+
+# Translations
+*.mo
+*.pot
+
+# Scrapy stuff:
+.scrapy
+
+# Sphinx documentation
+docs/_build/
+
+# PyBuilder
+.pybuilder/
+target/
+
+# IPython
+profile_default/
+ipython_config.py
+
+# pyenv
+#   For a library or package, you might want to ignore these files since the code is
+#   intended to run in multiple environments; otherwise, check them in:
+# .python-version
+
+# pipenv
+#   According to pypa/pipenv#598, it is recommended to include Pipfile.lock in version control.
+#   However, in case of collaboration, if having platform-specific dependencies or dependencies
+#   having no cross-platform support, pipenv may install dependencies that don't work, or not
+#   install all needed dependencies.
+#Pipfile.lock
+
+# poetry
+#   Similar to Pipfile.lock, it is generally recommended to include poetry.lock in version control.
+#   This is especially recommended for binary packages to ensure reproducibility, and is more
+#   commonly ignored for libraries.
+#   https://python-poetry.org/docs/basic-usage/#commit-your-poetrylock-file-to-version-control
+#poetry.lock
+
+# pdm
+#   Similar to Pipfile.lock, it is generally recommended to include pdm.lock in version control.
+#pdm.lock
+#   pdm stores project-wide configurations in .pdm.toml, but it is recommended to not include it
+#   in version control.
+#   https://pdm.fming.dev/#use-with-ide
+.pdm.toml
+
+# PEP 582; used by e.g. github.com/David-OConnor/pyflow and github.com/pdm-project/pdm
+__pypackages__/
+
+# Celery stuff
+celerybeat-schedule
+celerybeat.pid
+
+# SageMath parsed files
+*.sage.py
+
+# Environments
+.env
+.venv
+env/
+venv/
+ENV/
+env.bak/
+venv.bak/
+
+# Spyder project settings
+.spyderproject
+.spyproject
+
+# Rope project settings
+.ropeproject
+
+# mkdocs documentation
+/site
+
+# mypy
+.mypy_cache/
+.dmypy.json
+dmypy.json
+
+# Pyre type checker
+.pyre/
+
+# pytype static type analyzer
+.pytype/
+
+# Cython debug symbols
+cython_debug/
+
+# PyCharm
+#  JetBrains specific template is maintained in a separate JetBrains.gitignore that can
+#  be found at https://github.com/github/gitignore/blob/main/Global/JetBrains.gitignore
+#  and can be added to the global gitignore or merged into this file.  For a more nuclear
+#  option (not recommended) you can uncomment the following to ignore the entire idea folder.
+#.idea/
+/pudmed-20230804201740.xls

main.py

@@ -44,3 +44,4 @@ def main():
 dbpath = "./pubmedsql"
 main()
 # ?term=cell%2Bblood&filter=datesearch.y_1&size=20
+os.system("pause")

save2excel.py

@@ -1,12 +1,21 @@
 # -*- coding: utf-8 -*-
 import sqlite3
 from time import sleep
+import os
 
 import xlwt
 
 
 def save2excel(dbpath):
     savepath = './pudmed-%s.xls' % savetime
+    if os.path.exists(savepath):
+        print(f"指定的保存条目文件{savepath[2:]}已存在，文件重复\n\n")
+        confirm = str(input(f"是否删除原有的{savepath[2:]}文件, y or n\n"))
+        if confirm == "y" or "yes":
+            os.remove(savepath)
+        else:
+            print("无法保存成excel文件， 文件名重复冲突\n")
+            exit(-1)
     tablename = 'pubmed%s' % savetime
     try:
         try:
@@ -40,17 +49,11 @@ def save2excel(dbpath):
                 worksheet.write(i + 1, j, savedata[i][j])
         workbook.save(savepath)
         print("\n爬取数据库信息保存到excel成功\n")
-    except:
+    except IOError:
+        print("保存excel 文件IO异常")
+    except Exception:
          print("爬取数据库信息保存到excel失败\n")
 
-global dbpath
-dbpath='pubmedsql'
-# save2excel(dbpath)
-
-    # for i in range(len(result)):
-    #
-    #     time.sleep(random.randint(1,5))
-
 def gettable(dbpath):
     try:
         conn = sqlite3.connect(dbpath)
@@ -66,35 +69,54 @@ def gettable(dbpath):
     except:
         print("数据库查询出错，请检查数据库")
 
+if __name__ == "__main__":
+    global dbpath
+    dbpath='pubmedsql'
+    # save2excel(dbpath)
+
+        # for i in range(len(result)):
+        #
+        #     time.sleep(random.randint(1,5))
 
-tablelist = gettable(dbpath)
-if tablelist == None:
-    print("目标数据库不存在或者内容为空，请检查数据库，即将退出")
-    sleep(1)
-    exit()
-print("\n")
-x = 99
-while x != 0:
-    sleep(0.5)
-    print("当前数据库中含有以下table（数据表格） pubmed后面的数字为生成时精确到秒的时间\n", '----' * 20, '\n')
-    for i in range(len(tablelist)):
-        print("[%d]%s  " % (i + 1, tablelist[i]), end='')
+    tablelist = gettable(dbpath)
+    if tablelist == None:
+        print("目标数据库不存在或者内容为空，请检查数据库，即将退出")
+        sleep(1)
+        exit()
     print("\n")
-    print('----' * 20)
-    x = int(input("\n请输入你想要导出生成excel表格的数据库table编号，如1,2,3,4，输入0退出程序\n\n"))
-    if x == 0:
-        print("欢迎使用，程序即将结束")
+    x = 99
+    while x != 0:
         sleep(0.5)
-        break
-    index = tablelist[x - 1]
-    # print(index)
-    global savetime
-    savetime = index[6:]
-    # print(savetime)
-    save2excel(dbpath)
-    print("此次保存执行完成，下一个循环")
-    sleep(1.5)
-    print('----' * 20,"\n")
+        print("当前目录数据库中含有以下table(数据表格)pubmed后面的数字为生成时精确到秒的时间\n", '----' * 20, '\n')
+        for i in range(len(tablelist)):
+            print("[%d]%s  " % (i + 1, tablelist[i]), end='')
+        print("\n")
+        print('----' * 20)
+        try:
+            x = int(input("\n请输入你想要导出生成excel表格的数据库table编号，如1,2,3,4，输入0退出程序，注意不要输入上面的pubmedxxxxx编号\n\n"))
+        except ValueError:
+            print('----' * 20, '\n')
+            print("输入错误，如1,2,3,4，输入0退出程序，注意不要输入上面的pubmedxxxxx编号\n\n")
+            print("重新输入，下一个循环")
+            sleep(3)
+            print('----' * 20, '\n')
+
+            continue
+        if x == 0:
+            print("欢迎使用，程序即将结束")
+            sleep(0.5)
+            break
+        index = tablelist[x - 1]
+        # print(index)
+        global savetime
+        savetime = index[6:]
+        # print(savetime)
+        save2excel(dbpath)
+        print("此次保存执行完成，下一个循环")
+        sleep(3)
+        print('----' * 20,"\n")
+
+    os.system("pause")