save project

diy.py

+with open(r'C:\Users\Administrator\Desktop\SB.txt','w',encoding='utf-8') as file1:
+    for data in file1:
+        if '122344' in data:
+            print("文件中有")
+
+new_dat=''
+with open(file1 = open(r'C:\Users\Administrator\Desktop\SB.txt','w',encoding='utf-8') as file1
+    for data in file1:
+        if '小强：10本'in data:
+            data = data.replace('小强：10本','小强：11本')
+        new_data += data
+with open(r'C:\Users\Administrator\Desktop\SB.txt','w',encoding='utf-8') as file1:
+    file1.write(new_data)
+with open(r'C:\Users\Administrator\Desktop\SB.txt','w',encoding='utf-8') as file1:
+    a=file1.read()
+    print(a)
\ No newline at end of file