我正在尝试制作一个简单的小工具,用于将英寸转换为厘米,并且在尝试接受用户输入('y'或'n')时决定是否进行另一次转换或终止。这就是我所做的:
import time
def intro():
print "Welcome! This program will convert inches to centimeters for you.\n"
convert()
def convert():
input_cm = input(("Inches: "))
inches_conv = input_cm * 2.54
print "Centimeters: %f\n" % inches_conv
time.sleep(3)
restart = str(input("Do you wish to make another conversion? [y]Yes or [n]no: "))
if restart == 'y':
convert()
elif restart == 'n':
end_fast()
else:
print "I didn't quite understand that answer. Terminating."
end_slow()
def end_fast():
print "This program will close in 5 seconds."
time.sleep(5)
def end_slow():
print "This program will close in 30 seconds."
time.sleep(30)
intro()
这导致:
追踪(最近一次通话): 文件“C:\ Users \ Sam \ Programming \ Python \ the hard way \ ex5.4.py”,第29行,中 介绍() 文件“C:\ Users \ Sam \ Programming \ Python \ the hard way \ ex5.4.py”,第5行,in intro 兑换() 文件“C:\ Users \ Sam \ Programming \ Python \ the hard way \ ex5.4.py”,第12行,在转换中 restart = str(输入(“你想进行另一次转换吗?[y]是或[n]否?\ n”)) 文件“”,第1行,in NameError:名称'y'未定义
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答案 0 :(得分:6)
而不是input
尝试raw_input
:
取代:
restart = str(input("Do you wish to make another conversion? [y]Yes or [n]no: "))
在:
restart = raw_input("Do you wish to make another conversion? [y]Yes or [n]no: ")