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_data=''
+with open(r'C:\Users\Administrator\Desktop\yyds.txt','r',encoding='utf-8') as file1:
+    for i in file1:                                                                                                                                                                                                                                                                                                                                                                              :
+        if '小兰：12本'in i:
+            i=i.replace('小兰：12本','小兰：15本')
+        new_data+=i
+with open(r'C:\Users\Administrator\Desktop\yyds.txt','w',encoding='utf-8') as file1:
+    file1.write(new_i)
 with open(r'C:\Users\Administrator\Desktop\yyds.txt','r',encoding='utf-8') as file1:
 with open(r'C:\Users\Administrator\Desktop\yyds.txt','r',encoding='utf-8') as file1:
-    # file1.write('\n小强：10本\n')
-    # file1.write('小明：15本\n')
     a=file1.read()
     a=file1.read()
     print(a)
     print(a)
\ No newline at end of file