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'
+#with open(r"C:\Users\Robert\Desktop\book.txt",'a',encoding="utf-8") as jntm:
+#    jntm.write("小强：12本"'\n'"李明：15本"'\n')
+new_data=''
+with open(r"C:\Users\Robert\Desktop\book.txt",'r',encoding="utf-8") as jntm:
+    for i in jntm:
+        if '小强：12本' in i:
+            i=i.replace('小强：12本','小强：11本')
+        if '小兰：12本' in i:
+            i=i.replace('小兰：12本','小兰：14本')
+        new_data+=i
+with open(r"C:\Users\Robert\Desktop\book.txt",'w',encoding="utf-8") as jntm:
+    jntm.write(new_data)
\ No newline at end of file