save project

diy.py

+with open(r"C:\Users\Windows 10\Desktop\wasd.txt",'w',encoding='UTF-8')as wasd:
+    wasd.write('小兰：12本\n')
+    wasd.write('小丽：11本\n')
+    wasd.write('李文：9本\n')
+    wasd.write('张伟：16本\n')
+
+new_dsb=''
+with open(r"C:\Users\Windows 10\Desktop\wasd.txt",'r',encoding='UTF-8')as wasd:
+    for dsb in wasd:
+        if'张伟：16本'in dsb:
+            dsb=dsb.replace('张伟：16本','张伟：17本')
+        if'小兰：12本'in dsb:
+            dsb=dsb.replace('小兰：12本','小兰：14本')
+        new_dsb+=dsb
+    print(new_dsb)
+with open(r"C:\Users\Windows 10\Desktop\wasd.txt",'w',encoding='UTF-8')as wasd:
+    wasd.write(new_dsb)
\ No newline at end of file