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\EDZ\Desktop\book.txt","w",encoding='utf-8')
 # a.write("小兰：12本\n")
-# a.write("小：13本\n")
+# a.write("小强：13本\n")
 # a.close()
-new_data=''
-with open("C:\Users\EDZ\Desktop\book.txt","w",encoding='utf-8') as fz:
-    for data in fz:
-        if '小强:10本' in data:
-            data = data.replace('小强：10本','小强：10本')
-        new_data +=data
-
-with open(r"C:\Users\EDZ\Desktop\book.txt","w",encoding='utf-8') as fz:
-    fz.write(new_data)
\ No newline at end of file
+with open("C:\Users\EDZ\Desktop\book.txt","w",encoding='utf-8')as fz:
+a = fz.read()
+for i in a:
+    if 0 == '小强：13本':
+        print('找到了')
\ No newline at end of file