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'
+a=""
+with open(r'D:\dingjiupuxi\test.txt','a',encoding='utf-8')as qwe:
+    qwe.write('小兰：12本\n')
+    qwe.write('小丽：11本\n')
+    qwe.write('李文：9本\n')
+    qwe.write('张伟：16本\n')
+with open(r'D:\dingjiupuxi\test.txt','r',encoding='utf-8')as qwe:
+    for data in qwe:
+        if"小兰：12本"in data:
+            data=data.replace("小兰：12本","小兰：13本")
+        if"小丽：11本"in data:
+            data=data.replace("小丽：11本","小丽：10本")
+        a+=data
+with open(r'D:\dingjiupuxi\test.txt','w',encoding='utf-8')as qwe:
+    qwe.write(a)
+with open(r'D:\dingjiupuxi\test.txt','r',encoding='utf-8')as qwe:
+    e=qwe.read()
+    print(e)
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