save project

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'
+file1=open(r'C:\Users\Administrator\Desktop\tast.txt','w',encoding='utf-8')
+file1.write('小兰:12')
+file1.write('小丽:11')
+file1.write('李文:9')
+file1.write('张伟:16')
+file1.close()
+with open(r'C:\Users\Administrator\Desktop\tast.txt','a',encoding='utf-8') as file1:
+    file1.write('小兰:12')
+    file1.write('李明:12')
+    file1.write('小强:12')
+new-data=''
+with open(r'C:\Users\Administrator\Desktop\tast.txt','r',encoding='utf-8') as file1:
+    for data in file1:
+        if '小强:12' in data:
+            data=data.replace('小强:12','小强:11')
+        new-data+=data
+
+with open(r'C:\Users\Administrator\Desktop\tast.txt','w',encoding='utf-8') as file1:
+    file1.write(new-data)
\ No newline at end of file