为什么我的程序不读取其他变量？

debugcn 发表于 Dev

汉斯·保罗·利班

我是整个编程领域的新手，并在互联网上慢慢地学习了一些东西，但是我似乎找不到解决方案，或者只是不了解它。程序为什么不读取其他elif语句？这是我的第一个项目。我不胜感激任何提示和建议。欢迎任何建议和意见，谢谢！

#inputing
unknown = " "
while unknown != "exit":
    unknown = input("Please enter unknown: ").lower()
    angle = int(input("Please enter given angle: "))
#if base
    if unknown == "base" or "a":
        side = input("Height(b) or Hypotenuse(c)? ").lower()
        if side == "height" or "b":
            height = int(input("Please enter given height: "))
            base = int(height * tan(radians(angle)))
            print(">> The base is: " + str(base))
        else:
            hypotenuse = int(input("Please enter given hypotenuse: "))
            base = int(hypotenuse * cos(radians(angle)))
            print(">> The base is: " + str(base))

#if height
    elif unknown == "height" or "b":
        side = (input("Base(a) or Hypotenuse(c)?  ")).lower()
        if side == "base" or "a":
            base = int(input("Please enter given base: "))
            height = int(input(base * tan(radians(angle))))
            print(">> The height is: " + str(height))
        else:
            hypotenuse = int(input("Please enter given hypotenuse: "))
            height = int(hypotenuse * cos(radians(angle)))
            print(">> The height is: " + str(height))
    elif unknown == "exit":
        break
    else:
        print("I don't understand that..")

哈里什·武图库里

条件应为if unknown == "base" or unknown == "a":和elif unknown == "height" or unknown == "b":。

在unknown == "base" or "a"第一个条件为Falseunknown == "base"和"a"True，这导致的结果真"a"。

#inputing
unknown = " "
while unknown != "exit":
    unknown = input("Please enter unknown: ").lower()
    angle = int(input("Please enter given angle: "))
#if base
    if unknown == "base" or unknown == "a":
        side = input("Height(b) or Hypotenuse(c)? ").lower()
        if side == "height" or "b":
            height = int(input("Please enter given height: "))
            base = int(height * tan(radians(angle)))
            print(">> The base is: " + str(base))
        else:
            hypotenuse = int(input("Please enter given hypotenuse: "))
            base = int(hypotenuse * cos(radians(angle)))
            print(">> The base is: " + str(base))

#if height
    elif unknown == "height" or unknown == "b":
        side = (input("Base(a) or Hypotenuse(c)?  ")).lower()
        if side == "base" or "a":
            base = int(input("Please enter given base: "))
            height = int(input(base * tan(radians(angle))))
            print(">> The height is: " + str(height))
        else:
            hypotenuse = int(input("Please enter given hypotenuse: "))
            height = int(hypotenuse * cos(radians(angle)))
            print(">> The height is: " + str(height))
    elif unknown == "exit":
        break
    else:
        print("I don't understand that..")

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