说我想这样使用raw_input
:
code = raw_input("Please enter your three-letter code or a blank line to quit: ")
下:
if __name__=="__main__":
我怎样才能让它重复多次,而不是每次运行程序时都重复一次? 另一个问题是编写什么代码可以满足条件“或空行退出(程序)”。
答案 0 :(得分:6)
最好的:
if __name__ == '__main__':
while True:
entered = raw_input("Please enter your three-letter code or leave a blank line to quit: ")
if not entered: break
if len(entered) != 3:
print "%r is NOT three letters, it's %d" % (entered, len(entered))
continue
if not entered.isalpha():
print "%r are NOT all letters -- please enter exactly three letters, nothing else!"
continue
process(entered)
答案 1 :(得分:4)
while 1:
choice=raw_input("Enter: ")
if choice in ["Q","q"]: break
print choice
#do something else
答案 2 :(得分:1)
def myInput():
return raw_input("Please enter your three-letter code or a blank line to quit: ")
for code in iter(myInput, ""):
if len(code) != 3 or not code.isalpha():
print 'invalid code'
continue
#do something with the code
答案 3 :(得分:0)
if __name__ == '__main__':
input = raw_input("Please enter your three-letter code or leave a blank line to quit: ")
while input:
input = raw_input("Please enter your three-letter code or leave a blank line to quit: ")