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'
+# files1=open(r"C:\Users\EV3-6\Desktop\test.txt","w",encoding='utf-8')
+# files1.write('小兰：12本')
+# files1.write('小丽：11本')
+# files1.write('李文：9本')
+# files1.write('张伟：16本')
+# files1.close()
+# with open(r"C:\Users\EV3-6\Desktop\test.txt","a",encoding='utf-8')as files1:
+#     files1.write('小萌:12本\n')
+# with open(r"C:\Users\EV3-6\Desktop\test.txt","r",encoding='utf-8')as files1:
+#     a=files1.read()
+#     print(a)
+newdate=""
+with open(r"C:\Users\EV3-6\Desktop\test.txt","r",encoding='utf-8')as files1:    
+    for date in files1:
+        if '李文：9本' in date:
+            date=date.replace('李文：9本','李文：22本')
+        newdate +=date
+with open(r"C:\Users\EV3-6\Desktop\test.txt","w",encoding='utf-8')as files1: 
+    files1.write(newdate)
\ No newline at end of file