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=''
+with open(r'C:\Users\lenovo\Desktop\text.txt','r',encoding='utf-8') as q:
+    for i in q:
+        if '小兰：12本' in i:
+            i=i.replace('小兰：12本','小兰：14本')
+            a+=i
+with open(r'C:\Users\lenovo\Desktop\text.txt','w',encoding='utf-8') as q:
+    q.write(a)
+with open(r'C:\Users\lenovo\Desktop\text.txt','r',encoding='utf-8') as q:
+    z=q.read()
+    print(z)
+#    q.write('小兰：12本\n')
+#    q.write('小丽：11本\n')
+#    q.write('李：9本\n')
\ No newline at end of file