save project

diy.py

+new_data=''
 with open(r"C:\Users\tyzhang\Desktop\text.txt",'r',encoding='utf-8') as text:
 with open(r"C:\Users\tyzhang\Desktop\text.txt",'r',encoding='utf-8') as text:
 #    text.write('小强：10本\n')
 #    text.write('小强：10本\n')
 #text.write('小丽：11本\n')
 #text.write('小丽：11本\n')
@@ -5,5 +6,9 @@ with open(r"C:\Users\tyzhang\Desktop\text.txt",'r',encoding='utf-8') as text:
 #text.write('张伟：16本\n')
 #text.write('张伟：16本\n')
     for i in text:
     for i in text:
         if'小强：10本'in text:
         if'小强：10本'in text:
-            print('数据在文件中')
-
+           data=data.replace('小强：10本'='小强：11本')
+with open(r"C:\Users\tyzhang\Desktop\text.txt",'w',encoding='utf-8') as text:
+    text.write(new_data)
+with open(r"C:\Users\tyzhang\Desktop\text.txt",'r',encoding='utf-8') as text:
+    a=text.reat()
+    print(a)