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'
+file1=open(r"C:\Users\EDZ\Desktop\da.txt","w",encoding="utf-8")
+file1.write("小兰：12本")
+file1.write("小丽：11本")
+file1.write("李文：9本")
+file1.write("张伟：16本")
+file1.close()
+with open(r"C:\Users\EDZ\Desktop\da.txt","r",encoding="utf-8") as file2:
+    data=file2.read()
+    if "李文：9本" in data:
+        print("找到了")
+    data=data.replace("李文：9本","李文：100本")
+with open(r"C:\Users\EDZ\Desktop\da.txt","w",encoding="utf-8") as file3:
+    file3.write(data)
\ No newline at end of file