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\BBTC\Desktop\test.txt','w',encoding='utf-8')
+#file1.write('A:12\n')
+#file1.write('B:12\n')
+#file1.write('C:12\n')   
+#file1.write('D:12\n')
+#file1.close()
+new_data=''    
+with open(r'C:\Users\BBTC\Desktop\test.txt','r',encoding='utf-8')as file1:
+    for data in file1:
+        if 'D:10' in data:
+            data=data.replace('D:10','D:11')
+        new_data+=data
+with open(r'C:\Users\BBTC\Desktop\test.txt','r',encoding='utf-8')as file1:
+    file1.write(new_date)
+with open(r'C:\Users\BBTC\Desktop\test.txt','r',encoding='utf-8')as file1:
+    a=file1.read()
+    print(a)
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