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'
+new_data=''
+with open(r'C:\Users\Administrator\Desktop\test.txt','r',encoding="utf-8") as b:
+    for data in b:
+        if'小强：10本'in data:
+            data=data.replace('小强：10本','小强：11本')
+        if'小兰：11本'in data:
+            data=data.replace('小兰：11本','小兰：14本')
+        new_data+=data 
+with open(r'C:\Users\Administrator\Desktop\test.txt','w',encoding="utf-8") as b:
+    b.write(new_data)
+with open(r'C:\Users\Administrator\Desktop\test.txt','r',encoding="utf-8") as b:
+    a=b.read()
+    print(a)
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