Python 如何使用多个条件执行while循环

我在python中有一个while循环

condition1=False
condition1=False
val = -1

while condition1==False and condition2==False and val==-1:
    val,something1,something2 = getstuff()

    if something1==10:
        condition1 = True

    if something2==20:
        condition2 = True

'
'

我想在所有这些条件都为真时打破循环，上面的代码不起作用

我本来有

while True:
      if condition1==True and condition2==True and val!=-1:
         break

好的，这是最好的方法吗

---

谢谢

将

和

s更改为

或

s。

像最初那样使用无限循环。它是最干净的，你可以根据自己的意愿结合多种条件

while 1:
  if condition1 and condition2:
      break
  ...
  ...
  if condition3: break
  ...
  ...

---

但是，在一段时间内使用if的原作没有什么错。

我不确定它会读得更好，但你可以做以下几点：

while any((not condition1, not condition2, val == -1)):
    val,something1,something2 = getstuff()

    if something1==10:
        condition1 = True

    if something2==20:
        condition2 = True

---

您是否注意到，在您发布的代码中，

condition2

从未设置为

False

？这样，就永远不会执行循环体

---

另外，请注意，在Python中，

not condition

优先于

condition==False

；同样地，

condition

比

condition==True更可取

您能澄清一下“上面的代码不起作用”是什么意思吗。当while语句中有条件时会发生什么情况？嗨，如果满足任何条件，代码的第一位就会中断，我想在满足所有条件时中断Thanks@SilentGhost：第一个模糊中给出的条件（保持循环）几乎与第二个模糊中给出的条件相反（这会中断循环），但它使用了错误的逻辑运算符。

condition1 = False
condition2 = False
val = -1
#here is the function getstuff is not defined, i hope you define it before
#calling it into while loop code

while condition1 and condition2 is False and val == -1:
#as you can see above , we can write that in a simplified syntax.
    val,something1,something2 = getstuff()

    if something1 == 10:
        condition1 = True

    elif something2 == 20:
# here you don't have to use "if" over and over, if have to then write "elif" instead    
    condition2 = True
# ihope it can be helpfull

condition1 = False
condition2 = False
val = -1
#here is the function getstuff is not defined, i hope you define it before
#calling it into while loop code

while condition1 and condition2 is False and val == -1:
#as you can see above , we can write that in a simplified syntax.
    val,something1,something2 = getstuff()

    if something1 == 10:
        condition1 = True

    elif something2 == 20:
# here you don't have to use "if" over and over, if have to then write "elif" instead    
    condition2 = True
# ihope it can be helpfull