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\user\Desktop\book.txt","w",encoding="utf-8")
+# file1.write("xl:12\n")
+# file1.write("xl:11\n")
+# file1.write("lw:9\n")
+# file1.write("zw:16\n") 
+# file1.close()
+r=""
+with open(r"C:\Users\user\Desktop\book.txt","r",encoding="utf-8")as file1:
+    for data in file1:
+        if"xq:10" in data:
+            data=data.replace("xq:10","xq:11")
+        if"xl:12" in data:
+            data=data.replace("xl:12","xl:14")
+        r+=data
+with open(r"C:\Users\user\Desktop\book.txt","w",encoding="utf-8")as file1:
+    file1.write(r)
+with open(r"C:\Users\user\Desktop\book.txt","r",encoding="utf-8")as file1:
+    a= file1.read()
+    print(a)
+    
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