题解 | #字符个数统计#python
字符个数统计
https://www.nowcoder.com/practice/eb94f6a5b2ba49c6ac72d40b5ce95f50
#ord()函数可以用于获取字符的ASCII码
in_str = input()
l1 = list(in_str)
l2 = []
l3 = []
for i in l1:
if i not in l2:
l2.append(i)
for j in l2:
l3.append(ord(j))
print(len(l3))