方法1：
#参数k表示从多少开始，如k=0表示输出n以内的偶数，k=1表示输出n以内的奇数
def generateList(k,n):
L=[]
while(k<n):
L.append(k)
k=k+2
print (L)
generateList(0,100) #[0, 2, 4, 6, 8, 10...98]
generateList(1,100) #[1, 3, 5, 7, 9, 11...99]
方法2：
print(list(range(1,50,2))) #输出50以内的奇数
[1, 3, 5, 7, 9, 11, 13, 15, 17, 19, 21, 23, 25, 27, 29, 31, 33, 35, 37, 39, 41, 43, 45, 47, 49]
print(list(range(0,50,2))) #输出50以内的偶数
[0, 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32, 34, 36, 38, 40, 42, 44, 46, 48]
print([i for i in range(0,40,2)])
[0, 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32, 34, 36, 38]
封装为函数：
def fk(k,n):
print(list(range(k, n, 2)))
fk(1,50) #[1, 3, 5, 7, 9, 11, 13, 15, 17, 19, 21, 23, 25, 27, 29, 31, 33, 35, 37, 39, 41, 43, 45, 47, 49]
fk(0,40) #[0, 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32, 34, 36, 38]
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