我试图制作一个函数，将多个变量与一个整数进行比较，并输出一个三个字母的字符串。我想知道是否有办法将其翻译成Python。所以说：
x = 0
y = 1
z = 3
mylist = []
if x or y or z == 0:
mylist.append("c")
if x or y or z == 1:
mylist.append("d")
if x or y or z == 2:
mylist.append("e")
if x or y or z == 3:
mylist.append("f")
其将返回以下列表：
["c", "d", "f"]
当前回答
此代码可能有帮助
L ={x, y, z}
T= ((0,"c"),(1,"d"),(2,"e"),(3,"f"),)
List2=[]
for t in T :
if t[0] in L :
List2.append(t[1])
break;
其他回答
#selection
: a=np.array([0,1,3])
#options
: np.diag(['c','d','e','f'])
array([['c', '', '', ''],
['', 'd', '', ''],
['', '', 'e', ''],
['', '', '', 'f']], dtype='<U1')
现在我们可以使用as[row，col]选择器，它的作用就像任何（…）条件一样：
#list of options[sel,sel]
: np.diag(['c','d','e','f'])[a,a]
array(['c', 'd', 'f'], dtype='<U1')
写x或y或z==0的直接方法是
if any(map((lambda value: value == 0), (x,y,z))):
pass # write your logic.
但我认为，你不喜欢这种方式很难看。
另一种方式（更好）是：
0 in (x, y, z)
顺便说一句，很多如果可以写成这样
my_cases = {
0: Mylist.append("c"),
1: Mylist.append("d")
# ..
}
for key in my_cases:
if key in (x,y,z):
my_cases[key]()
break
单线解决方案：
mylist = [{0: 'c', 1: 'd', 2: 'e', 3: 'f'}[i] for i in [0, 1, 2, 3] if i in (x, y, z)]
Or:
mylist = ['cdef'[i] for i in range(4) if i in (x, y, z)]
您可以尝试下面显示的方法。在该方法中，您可以自由指定/输入要输入的变量数量。
mydict = {0:"c", 1:"d", 2:"e", 3:"f"}
mylist= []
num_var = int(raw_input("How many variables? ")) #Enter 3 when asked for input.
for i in range(num_var):
''' Enter 0 as first input, 1 as second input and 3 as third input.'''
globals()['var'+str('i').zfill(3)] = int(raw_input("Enter an integer between 0 and 3 "))
mylist += mydict[globals()['var'+str('i').zfill(3)]]
print mylist
>>> ['c', 'd', 'f']
我认为这会处理得更好：
my_dict = {0: "c", 1: "d", 2: "e", 3: "f"}
def validate(x, y, z):
for ele in [x, y, z]:
if ele in my_dict.keys():
return my_dict[ele]
输出：
print validate(0, 8, 9)
c
print validate(9, 8, 9)
None
print validate(9, 8, 2)
e
