save project

diy.py

-a=open(r"C:\Users\Admin\Desktop\text.txt",'w',encoding='utf-8')
-a.write('小兰:12')
-a.close()
-#with open(r"C:\Users\Admin\Desktop\text.txt",'a',encoding='utf-8') as a:
-#    a.write('小兰:12\n')
-with open(r"C:\Users\Admin\Desktop\text.txt",'r',encoding='utf-8') as a:
-    f=a.read()
-    new_f=''
-    for i in f:
-        if '小兰:12' in f:
-            f=f.replace('小兰:12','小兰:10')
-        new_f+=f
-print(new_f)
-with open(r"C:\Users\Admin\Desktop\text.txt",'w',encoding='utf-8') as a:
-    a.write(new_f)
\ No newline at end of file
+bros=["刘备","关羽","张飞"]
+bros[0]="关羽"
+bros[1]="刘备"
+print(bros)
+# a=['华雄']
+# b=['袁术','夏侯惇','曹操','关羽']
+# b.pop('')
\ No newline at end of file