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'
+d=''
+with open(r'C:\Users\Administrator\Desktop\test.txt','r',encoding='utf-8')as a1:
+    for c in a1:
+        if '小丽：11本'in c:
+            c=c.replace('小丽：11本','小丽：15本')
+            d+=c
+with open(r'C:\Users\Administrator\Desktop\test.txt','w',encoding='utf-8')as a:
+    a.write(d)
+with open(r'C:\Users\Administrator\Desktop\test.txt','r',encoding='utf-8')as a:
+    e=a.read()
+    print(a)
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