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\65415\Desktop\book.txt","r",encoding='utf-8') as fiel1:
+    for data in fiel1:
+        if '小强：10本' in data:
+            data=data.replace('小强：10本','小强：11本')
+        if '小兰：12本' in data:
+            data=data.replace('小兰：12本','小兰：12本')
+
+with open(r"C:\Users\65415\Desktop\book.txt","w",encoding='utf-8') as fiel1:
+    fiel1.writh(new_data)
+
+with open(r"C:\Users\65415\Desktop\book.txt","r",encoding='utf-8') as fiel1:
+    a=fiel1.read()
+
+    print(a)
+        
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