擅长:python、mysql、java
<pre><code>def passcheck():
user=name_ent2.get()
pass1 = pass_ent2.get()
confirm = retype_ent.get()
names = open("nlist.txt","a+")
paste = bytes(user, 'utf-8')
with open("nlist.txt", "rb", 0) as file:
for f in file:
f = f.strip()
if f == paste:
print("true")
status = True
if status == False:
names.write("\n" + user)
print(user + " got added to the list")
names.close()
</code></pre>