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'
 # 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'
+new_booktxt=[]
 booktxt=open(r'C:\Users\Administrator\Desktop\booktxt',"w",encoding='utf_8')
 booktxt=open(r'C:\Users\Administrator\Desktop\booktxt',"w",encoding='utf_8')
 booktxt.write('小兰:12本')
 booktxt.write('小兰:12本')
 booktxt.write('小丽:11本')
 booktxt.write('小丽:11本')
 booktxt.write('李文:9本')
 booktxt.write('李文:9本')
 booktxt=open(r'C:\Users\Administrator\Desktop\booktxt',"a",encoding='utf_8')
 booktxt=open(r'C:\Users\Administrator\Desktop\booktxt',"a",encoding='utf_8')
-booktxt.append('小强:12本')
+booktxt.append('小强:10本')
 booktxt.append('李明:15本')
 booktxt.append('李明:15本')
+booktxt=open(r'C:\Users\Administrator\Desktop\booktxt',"r",encoding='utf_8')
 for i in booktxt:
 for i in booktxt:
     print(i)
     print(i)
+    if '小强:10' in i :
+        booktxt.replace('小强:10','小强:11')
+    if '小丽:11' in i :
+        booktxt.replace('小丽:11','小丽:9')
+    new_booktxt+=i
+    print(new_booktxt)
 booktxt.close()
 booktxt.close()
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