如何使用函数的返回值

Question

我有一个函数，可以查找图形中的所有路径。该函数返回所有路径的列表。以后如何在代码中使用此值？

def findpaths(attachednodes,startID,endID,path = []):
    path = path + [startID]

    if startID == endID:
        return [path]

    if startID not in attachednodes:
        return []

    paths = []
    for n in attachednodes[startID]:
        if n not in path:
            newpath = findpaths(attachednodes,n,endID,path)
            for new in newpath:
                paths.append(new)

    for i in range(len(paths)):
        numflight = i
        flight = paths[i]
        flights.update({numflight: flight})

    return paths

Answer 1

您将函数调用放在变量赋值的右侧。该变量将具有返回值： 例如

def some_function():
  return 10

x = some_function()
print(x) # will print 10