Python 百分比计算不起作用

当我在Python3.3.2Mac中运行这个时，它会出现这个错误

mark=input("Please enter the mark you received for the test:")
total=input("Please enter the mark the test was out of:")

percentage=(mark*100/total)

print("Your percentage is:"),percentage,"%"

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如何修复它？

当您制作打印语句时，请执行以下操作：

Traceback (most recent call last):
  File "/Users/user1/Desktop/Percentage2.py", line 4, in <module>
    percentage=(mark/total*100)
TypeError: unsupported operand type(s) for /: 'str' and 'str'

此外，您还可以使用以下格式：

print ("your percentage is: %p" % (percentage))

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个人建议使用格式。

输入返回字符串，您尝试执行30*100/总计，字符串无法进行数学计算，请尝试intmark和inttotal，然后执行数学运算

print("your percentage is: {0} ".format(percentage))

percentage=(float(mark)*100/float(total))

print("Your percentage is: ",percentage,"%", sep='')

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不是任何Python方面的专家，但是错误清楚地表明您不能在数学计算中使用字符串。将变量更改为数字类型，或将其转换为数字类型。感谢您的帮助！！

try:
    Mark = int(input("Please enter the mark you received for the test."))
    Total = int(input("Please enter the mark the test was out of."))
    Perc = (Mark*100) / Total
    print("Your Percentage is"+Perc)
except:
    print("Numbers not entered. Please try again")