Question

def def range_test(num):
  if 1 < num < 550  :
    return( "{:d} is in range.".format(num))
  else:
    return("The number you entered is outside the range!")
num = int(input("Enter a number: "))

我的程序只打印＆＃34;输入一个数字：＆＃34;它的出局？你能搞清楚为什么吗？谢谢！

Answer 1

你还没有调用这个函数。输入后，您需要：range_test(num)来调用该函数。如果要打印输出，还需要打印返回值。

完整的程序应该是：

def range_test(num):
  if 1 < num < 550  :
    return( "{:d} is in range.".format(num))
  else:
    return("The number you entered is outside the range!")
num = int(input("Enter a number: "))
print(range_test(num))

Answer 2

# manipulated code given below. it is working perfectly
def range_test(num):
   if 1 < num < 550  :
       return( "{:d} is in range.".format(num))
   else:
       return("The number you entered is outside the range!")

num = int(input("Enter a number: "))
s1=range_test(num)
print"%s"%(s1)

范围内的Python数字不起作用

2 个答案: