擅长:python、mysql、java
<p>这些是局部变量,不是全局变量。在</p>
<p>你可以试试这个:</p>
<pre><code>#!/usr/bin/python
def inputKilos():
while True:
numKilos = float(raw_input("Enter a number of Kilometers. Enter 0 to end program. "))
if numKilos == 0:
break
else:
miles = convert_kilos(numKilos)
print_output(numKilos,miles)
return
def convert_kilos(numKilos):
numMiles = numKilos * 0.6214
return numMiles
def print_output(numKilos,numMiles):
print numKilos, "kilometers eqauls", numMiles, "miles."
inputKilos()
</code></pre>
<p>或使用全局关键字:</p>
^{pr2}$