auto save

file.py

 # 写入同学们的捐赠明细：
 
-file=open(r'C:\Users\29018\Desktop\test.txt','w',encoding='utf-8')
-file.write('小兰：12本')
+file=open('C:\\Users\\29018\\Desktop\\test.txt','w',encoding='utf-8')
+file.write('他用户\n')
+file.close()
+
+file=open('C:\\Users\\29018\\Desktop\\test.txt','r',encoding='utf-8')
+q=file.read()
+print(q)
+file.close()
+
+with open('C:\\Users\\29018\\Desktop\\test.txt','r',encoding='utf-8') as file:
+    for i in file:
+        if "他" in i:
+            print("数据在文件里面")
+
+file=open('C:\\Users\\29018\\Desktop\\test.txt','r',encoding='utf-8')
+new_data=""
+for data in file:
+        if "他" in data:
+            data1=data.replace("他","台湾")
+        new_data=new_data+data1
+
+file=open('C:\\Users\\29018\\Desktop\\test.txt','w',encoding='utf-8') 
+file.write(new_data)
+print(new_data)
 file.close()
\ No newline at end of file

w.py

+file=open('C:\\Users\\29018\\Desktop\\test.txt','w',encoding='utf-8')
+file.write('系的很多男生对女生的哪些技能计算机')
+file.close()
+
+file=open('C:\\Users\\29018\\Desktop\\test.txt','a',encoding='utf-8')
+file.write("dkdmsss")
+file.close()
+
+
+file=open('C:\\Users\\29018\\Desktop\\test.txt','r',encoding='utf-8')
+a=file.readlines()
+print(a)
\ No newline at end of file