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'
+# jzeng=open(r"C:\Users\Administrator\Desktop\l.txt","w",encoding="utf-8")
+# jzeng.write("小兰：12本\n")
+# jzeng.close()
+# with open(r"C:\Users\Administrator\Desktop\l.txt","a",encoding="utf-8") as jzeng:
+#     jzeng.write("小丽：11本\n")
+new_data=" "
+with open(r"C:\Users\Administrator\Desktop\l.txt","r",encoding="utf-8") as jzeng:
+    for data in jzeng:
+        if "小兰：12本" in data:
+            data=data.replace("小兰：12本","小兰：13本")
+        new_data+=data
+with open(r"C:\Users\Administrator\Desktop\l.txt","w",encoding="utf-8") as jzeng:
+    jzeng.write(new_data)
+with open(r"C:\Users\Administrator\Desktop\l.txt","r",encoding="utf-8") as jzeng:
+    a=jzeng.read()
+    print(a)
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