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 = open(r"C:\Users\XMBC\Desktop\text.txt","w",encoding="utf-8")
-a.write('小兰：12本,小丽：11本,李文：9本,张伟：16本')
-a.close()
\ No newline at end of file
+# abc=open(r"C:\Users\XMBC\Desktop\test.txt",'w',encoding="utf-8")
+# abc.write("小兰：12本、小丽：11本、李文：9本、张伟：16本")
+# abc.close()
+new_data=""
+with open(r"C:\Users\XMBC\Desktop\test.txt",'r',encoding="utf-8") as abc:
+    for data in abc:
+        if "小兰：12本" in data:
+            data=data.replace("小兰：12本","小兰：13本")
+        new_data+=data
+        print(new_data)
+with open(r"C:\Users\XMBC\Desktop\test.txt",'w',encoding="utf-8") as abc:
+    abc.write(new_data)
\ No newline at end of file