python - 如何通过参数传递大于或小于号？

Question

如果可以通过参数传递 >= 符号:如下所示:

def example():
   num1 = 0
   num2 = 5
   sign1 = >=
   sign2 = <=

   test(num1, num2, sign1, sign2)

def test(num1, num2, sign1):
    while num1 sign1 0 and num2 sign2 5:
       print('whatever')
       num1+=1
       num2-=1

显然这不是我真正想做的；我只是想知道这是否可能......

Answer 1

是的，可以使用operator模块。然而，它们被视为函数而不是字符串，这正是它们在您最初的尝试中出现的样子。

from operator import le, ge

def example():
   num1 = 0
   num2 = 5
   sign1 = ge
   sign2 = le


def test(num1, num2, sign1, sign2):
    while sign1(num1, 0) and sign2(num2, 5):
       print('whatever')
       num1+=1
       num2-=1