Question

我正在尝试错误捕获由用户输入设置的变量。到目前为止，我已经做到了这一点，但是如果有更简单或更有效的方法可以徘徊：

 while number1error == 1:
        try:
            number1 = float(input("Please enter the value of number1"))
            break
        except ValueError:
            print("Please enter an integer")

正如您所看到的，如果我从用户那里获得了大量输入，这将占用大量空间。任何更好的建议将不胜感激。

Answer 1

这会有帮助吗？

totalReTries = 10
acquiredValue = None
PROMPT_MESSAGE = "Please enter the valid value: "
typeOfInteredData = float
rangeOfData = range(10, 20)

for currentRetry in range(1, totalReTries):

    print "Attempt %d of %d" % (currentRetry, totalReTries)
    try:
        acquiredValue = input(PROMPT_MESSAGE)
    except ValueError:
        print("Incorrect data format. Please try again.")
        continue

    if type(acquiredValue) != typeOfInteredData:
        print "Incorrect data type. Please try again."
        continue
    elif not acquiredValue in rangeOfData:
        print "Incorrect data Range. Please try again."
        continue
    break

if not acquiredValue:
    print "ERROR: Failed to get a correct value"
else:
    print "The acquired value is: " + str(acquiredValue)

如上所述，将其改编成一个函数也是一个好主意。此致

基本错误捕获 - 用于输入 - Python

1 个答案: