Question

我从python开始。当我在if语句中放入一个新的raw_input时，我一直收到错误。如果他们回答的输入不正确，我想给他们另一个输入更多输入的机会，还有另外一种方法吗？

继承守则

attraction = {
    'approach' : "words",
    'introduction' : "words",
    'qualification' : "words",
    'rapport' : "words"
}

answer = raw_input("Pick from these approaches: introduction, qualification, or rapport:")

if answer != "approach" and answer != "introduction" and answer != "qualification" and answer != "rapport":
    new_answer = raw_input("You didn't choose one of the choices, type in the choice you want again:")
if new_answer != "approach" and answer != "introduction" and answer != "qualification" and answer != "rapport":
    print "That was your last chance buddy"
else:
    print attraction[answer]

Answer 1

当您第二次询问时，您无需制作新变量new_answer，只需将answer设置为新值：

answer = raw_input("You didn't choose one of the choices, type in the choice you want again:")

将[{1}}替换为程序中其他地方的new_answer。

我会使用answer方法执行此类程序：

.keys()

Answer 2

您可以简单地写一下：

while True:
    answer = raw_input("Pick from these approaches: introduction, qualification, or rapport:")
    if answer == "approach" or answer == "introduction" or answer == "qualification" or answer == "rapport":
        break

Python：if语句中的Raw_Input？

2 个答案: