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'
+f=open(r'C:\Users\Administrator\Desktop\test.txt','w',encoding='utf-8')
+f.write('小兰：12本、小丽：11本、李文：9本、张伟：16本')
+f.close()
+with open(r'C:\Users\Administrator\Desktop\test.txt','a',encoding='utf-8') as f:
+    f.write('wsndei;n,wsnbb;a')
+with open(r'C:\Users\Administrator\Desktop\test.txt','r',encoding='utf-8') as f:
+    n=f.read()
+    for i in n:
+        if  'n' in i:
+            print("sdfx")
+        # else:
+        #     print("b")