python - python 中的复杂 if-elif

Question

我正在尝试在 python 中创建一个复杂的 if else 语句。这些语句应该检查两个变量。示例代码:

    if value1 == 0.1 and value2 > 2.05:
       value1  = value1 + 0.1
       return value1  
    elif value1  == 0.2 and value2 > 1.85:
       value1  = value1  + 0.1
    elif value1  == 0.3 and value2 > 1.95:
       value1  = value1  + 0.1
    elif value1  == 0.4 and value2 > 2.05:
       value1  = value1  + 0.1
    ...
    if value1 == 0.1 and value2 < 1.75:
       return value1  
    elif value1  == 0.2 and value2 < 1.85:
       value1  = value1  - 0.1
    elif value1  == 0.3 and value2 < 1.95:
       value1  = value1  - 0.1
    elif value1  == 0.4 and value2 < 2.05:
       value1  = value1  - 0.1
    ....

总的来说，对于 0.1 - 1 之间的每个 value1，我都有一个 if 或 elif。每次 value2 都是不同的值。我想要做的是检查 value2 是否小于一个值以减少 value1 = value -1。在不添加许多 if -elif 语句的情况下，哪种方法最聪明？

Answer 1

如果没有模式或者它太复杂以至于不能轻易地用循环构造它那么我会做这样的事情:

eq_gt_pairs = ((0.1, 2.05), (0.2, 1.85), (0.3, 1.95), (0.4, 2.05)) # ...

eq_lt_pairs = ((0.1, 1.75), (0.2, 1.85), (0.3, 1.95), (0.4, 2.05)) # ...

for pair in eq_gt_pairs:
    if value1 == pair[0] and value2 > pair[1]:
        return value1 + 0.1

for pair in eq_lt_pairs:
    if value1 == pair[0] and value2 < pair[1]:
        return value1 - 0.1