题解 | #字符串排序#
字符串排序
https://www.nowcoder.com/practice/5190a1db6f4f4ddb92fd9c365c944584
stri = input()
alpa = [i for i in stri if i.isalpha()] # 筛选字符
alpa = sorted(alpa,key=str.upper) # 将字符按照不区分大小进行排序
index = 0
for i in stri:
if i.isalpha(): # 遍历源字符串，如果是字符就打印排序好的字符串
print(alpa[index],end='')
index += 1
else:
print(i, end='')
# print(alpa)
# print(alpa)
