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
+#a=open(r'C:\Users\BBTC\Desktop\test.txt','w',encoding='utf-8')
+#a.write('A:12\n')
+#a.write('B;11\n')
+#a.write('C;9\n')
+#a.write('D;16\n')
+#a.close()
+
+new_date=' ' 
+with open(r'C:\Users\BBTC\Desktop\test.txt','r',encoding='utf-8') as a:
+    for date in a:
+        if "D:10" in date:
+            print("在")
+        new_date+=date
+
+with open(r'C:\Users\BBTC\Desktop\test.txt','r',encoding='utf-8') as a:
+    a.write(new_date)
+
+with open(r'C:\Users\BBTC\Desktop\test.txt','r',encoding='utf-8') as a:
+    a=a.read()
+    print(a)
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