我已经获得了包含一些信息的CSV,代码将遍历CSV中的每一行,如果输入的用户名与该行中的值匹配,则允许用户登录。
但是,我不确定如何让我的程序说明他们的详细信息是否正确。 "未找到"在每次迭代后打印出来,而不是在CSV的末尾打印出来。
我怎么能这样做,以便一旦它在for循环结束时,它说没有找到细节?
感谢。
username = str(input("Enter your username: "))
password = str(input("Enter your password: "))
file = open("details.csv","r")
print('Details opened')
contents = csv.reader(file)
print('reader established')
for row in contents:
print('begin loop')
if username == row[4]:
print("Username found")
if password == row[3]:
print("Password found")
main()
else:
print("not found")
答案 0 :(得分:2)
使用break,无论如何stop using print for debugging
for row in contents:
print('begin loop')
if username == row[4]:
print("Username found")
if password == row[3]:
print("Password found")
main()
break
else:
print("not found")
答案 1 :(得分:1)
简单的解决方案是添加变量is_found
作为示例:
is_found = False
for row in contents:
print('begin loop')
if username == row[4]:
print("Username found")
if password == row[3]:
print("Password found")
main()
is_found = True
if not is_found:
print("not found")