python中的减法问题

我在减去

creditsLeft=creditsDegree–creditsTaken

时遇到问题。 我不知道如何设置计算

studentName = input('Enter student name.')
studentDegree = input('Enter degree name.')
creditsDegree = int(input('Enter the number of credits required for the degree.'))
creditsTaken = int(input('Enter the number of credits taken for the degree.'))
remaining = (Taken - Degree)
print('The student\'s name is', studentName)
print('The degree name is', studentDegree)
print('The number required for the degree is', creditsDegree)
print('The number of credits taken so far is', creditsTaken)

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有帮助吗？您应该能够在最后一次输入

creditsTaken

后立即执行

creditsLeft=creditsDegree–creditsTaken

…是的，它起作用了。我在做别的事情，但现在它起作用了。