print(chr(48), chr(49), chr(97))  # 十进制
#result:0 1 a
 
print(chr(0x30), chr(0x31), chr(0x61)) # 十六进制
#result:0 1 a

import numpy as np
 
a1 = np.arange(97,123)
b1 = [chr(i) for i in a1]
a2 = np.arange(65,91)
b2 = [chr(i) for i in a2]
print(b1)
#result:['a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z']
print(b2)
#result:['A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z']

import numpy as np
 
np.random.seed(1)
a3 = np.random.randint(65,91,10)
b3 = [chr(i) for i in a3]
print(b3)
#result:['F', 'L', 'M', 'I', 'J', 'L', 'F', 'P', 'A', 'Q']