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("C:\\Users\\Administrator\\Desktop\\test.txt","w",encoding="utf-8")
+# file1.write("小兰:12\n"+'小丽：11\n'+'李文：9\n'+'张伟：16本\n')
+# file1.close()
+
+# with open (r'C:\Users\Administrator\Desktop\test.txt','a',encoding="utf-8") as file:
+#     file.write('小兰：12本\n')   
+new_data=''
+with open(r'C:\Users\Administrator\Desktop\test.txt','r',encoding="utf-8") as file:
+    # a=file.read()
+    # print(a)
+    for data in file:        
+        if '小兰：12本' in data:            
+            data=data.replace('小兰：12本','小兰：11000000000000000000000000本')
+            print(data)
+        new_data+=data
+
+    print(new_data)
+with open (r'C:\Users\Administrator\Desktop\test.txt','w',encoding="utf-8") as file:
+    file.write(new_data)               
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