auto save

bdhc.py

+file=open(r"C:\Users\user\Desktop\nm.txt",'w',encoding='utf-8')
+file.write('你好')
+file.close()
+
+file1=open(r"C:\Users\user\Desktop\nm.txt",'r',encoding='utf-8')
+a=file1.read()
+
+with open(r"C:\Users\user\Desktop\nm.txt",'r',encoding='utf-8')as file:
+    for data in file:
+        if'你好'in data:
+            print('数据在文件中')
\ No newline at end of file

diy.py

+# 写入同学们的捐赠明细：'小兰：12本'、'小丽：11本'、'李文：9本'、'张伟：16本'
+file=open(r"C:\Users\EDZ\Desktop\test.txt",'w',encoding='utf-8')
+file.write('小兰:12本\n')
+file.close()
+
+with open(r"C:\Users\EDZ\Desktop\test.txt",'a',encoding='utf-8') as file:
+    file.write('小兰:12本\n')