Question

我有以下问题。我有一个参数frc_size。根据fcr_size的大小，必须在if条件中检查更多距离。有没有办法处理这种聪明并缩短所有这些表达方式？例如，对于fcr_size = 3，if条件如下：

minusscore = 2

for coords in full_box:
    mindist = float("inf")
    for m in range(len(lineSegmentPairs[0])):
        newdist = dist(lineSegmentPairs[0][m], lineSegmentPairs[1][m], coords)
        if newdist<mindist:
            mindist=newdist
    if mindist <= radius :
        val1 = int(sparse1.get(coords,"0")[0]) - minusscore
        sparse1[coords] = [str(val1)]
    elif mindist <= (radius +1) :
        val1 = int(sparse1.get(coords,"0")[0]) + 3
        sparse1[coords] = [str(val1)]
    elif mindist <= (radius +2) :
        val1 = int(sparse1.get(coords,"0")[0]) + 2
        sparse1[coords] = [str(val1)]
    elif mindist <= (radius +3) :
        val1 = int(sparse1.get(coords,"0")[0]) + 1
        sparse1[coords] = [str(val1)]
    elif mindist > (radius +3) :
        continue

但是如果fcr_size为4，则需要额外的if条件，如：

minusscore = 2

for coords in full_box:
    mindist = float("inf")
    for m in range(len(lineSegmentPairs[0])):
        newdist = dist(lineSegmentPairs[0][m], lineSegmentPairs[1][m], coords)
        if newdist<mindist:
            mindist=newdist
    if mindist <= radius :
        val1 = int(sparse1.get(coords,"0")[0]) - minusscore
        sparse1[coords] = [str(val1)]
    elif mindist <= (radius +1) :
        val1 = int(sparse1.get(coords,"0")[0]) + 4
        sparse1[coords] = [str(val1)]
    elif mindist <= (radius +2) :
        val1 = int(sparse1.get(coords,"0")[0]) + 3
        sparse1[coords] = [str(val1)]
    elif mindist <= (radius +3) :
        val1 = int(sparse1.get(coords,"0")[0]) + 2
        sparse1[coords] = [str(val1)]
    elif mindist <= (radius +4) :
        val1 = int(sparse1.get(coords,"0")[0]) + 1
        sparse1[coords] = [str(val1)]
    elif mindist > (radius +4) :
        continue

Answer 1

也许是这样的？

if mindist <= radius:
  val1 = int(sparse1.get(coords,"0")[0]) - minusscore
  sparse1[coords] = [str(val1)]
elif mindist > (radius + fcr_size):
  continue
else:
  for i in range(fcr_size):
    if mindist <= radius + i + 1:
      val1 = int(sparse1.get(coords,"0")[0]) + (fcr_size - i)
      sparse1[coords] = [str(val1)]
      break

Answer 2

似乎if语句中的代码遵循一种模式，可以转换为for循环。每个elif语句可以是循环的一次迭代，其中包含变量而不是硬编码的数字。它会显着减少代码的大小

Python：多个if条件取决于参数

2 个答案: