python中的輸出未達到預期

Question

與實際輸出相比沒有得到預期的輸出。 盡管此處的計數器已放置在循環外部。 在“錯誤”之后，每次都會打印標記。 我希望只在最后一次打印一次。 我已經在if循環之外編寫了它

resp = {}
ansdb = {}
counter = 0

for i in range(1, 10):
    resp_i = form.getvalue('opt_%d' %i, '0')
    resp[i] = int(resp_i)

print "<br>"


for row in prsnobj.result:
    ansdb[int(row[0])] = int(row[1])

print "<br>"

for i in range(1, len(resp)+1):

    if resp[i] == ansdb[i]:
        print "<br>Right"
        counter += 1

   else:
       print "<br>Wrong"

   print "Marks:", counter

實際輸出：

Right Marks: 1
Right Marks: 2
Wrong Marks: 2
Right Marks: 3
Right Marks: 4 

預期：

Right 
Right 
Wrong 
Right
Right 
Marks: 4

Answer 1

最后一行：

print "Marks:", counter

在for循環中，因此只需對其進行更正，它應該可以工作：

resp = {}
ansdb = {}
counter = 0

for i in range(1, 10):
    resp_i = form.getvalue('opt_%d' %i, '0')
    resp[i] = int(resp_i)

print "<br>"

for row in prsnobj.result:
    ansdb[int(row[0])] = int(row[1])

print "<br>"

for i in range(1, len(resp)+1):

    if resp[i] == ansdb[i]:
        print "<br>Right"
        counter += 1
    else:
        print "<br>Wrong"

print "Marks:", counter

Answer 2

將此行移出循環范圍。

print "Marks:", counter

Answer 3

在for循環外編寫最后一個打印語句。 像這樣：

resp = {}
ansdb = {}
counter = 0

for i in range(1, 10):
    resp_i = form.getvalue('opt_%d' %i, '0')
    resp[i] = int(resp_i)

print "<br>"


for row in prsnobj.result:
    ansdb[int(row[0])] = int(row[1])

print "<br>"

for i in range(1, len(resp)+1):

    if resp[i] == ansdb[i]:
        print "<br>Right"
        counter += 1

  else:
       print "<br>Wrong"

print "Marks:", counter

Answer 4

我測試了一下，它可以正常工作：

resp = {}
ansdb = {}
counter = 0

for i in range(1, 10):
    resp_i = form.getvalue('opt_%d' %i, '0')
    resp[i] = int(resp_i)

print "<br>"


for row in prsnobj.result:
    ansdb[int(row[0])] = int(row[1])

print "<br>"

for i in range(1, len(resp)+1):
    if resp[i] == ansdb[i]:
        print "<br>Right"
        counter += 1
    else:
        print "<br>Wrong"

print "Marks:", counter