我试图在下面的代码中为两个起始变量赋值,并在必要时更改它们(首先是if和elif),但最小的变为字符串"已完成&#34 ;而最大的保持不变。我错过了什么?
非常感谢
largest = 0
smallest = 999
while True:
num = raw_input("Enter a number: ")
if largest > num:
largest = num
elif smallest < num:
smallest = num
try:
num = int(num)
except ValueError:
print "Invalid input"
if num == "done" : break
print "Maximum is", largest
print "Minimum is", smallest
按照以下建议编辑代码:
largest = None
smallest = None
while True:
num = raw_input("Enter a number: ")
try:
num = int(num)
if num > largest:
largest = num
elif smallest < num:
smallest = num
except ValueError:
print "Invalid input"
if num == "done" : break
print "Maximum is", largest
print "Minimum is", smallest
现在它正确运行