說我想用raw_input
這樣的:如何讓raw_input重複,直到我想退出?
code = raw_input("Please enter your three-letter code or a blank line to quit: ")
下:
if __name__=="__main__":
我怎樣才能讓它重複多次,而不僅僅是一次我每次運行該程序?
另一個問題是寫什麼代碼可以滿足條件「或退出空白行(程序)」。
說我想用raw_input
這樣的:如何讓raw_input重複,直到我想退出?
code = raw_input("Please enter your three-letter code or a blank line to quit: ")
下:
if __name__=="__main__":
我怎樣才能讓它重複多次,而不僅僅是一次我每次運行該程序?
另一個問題是寫什麼代碼可以滿足條件「或退出空白行(程序)」。
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: ")
最佳:
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)
while 1:
choice=raw_input("Enter: ")
if choice in ["Q","q"]: break
print choice
#do something else
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