题解 | #计算某字符出现次数#
计算某字符出现次数
https://www.nowcoder.com/practice/a35ce98431874e3a820dbe4b2d0508b1
import sys
string = input()
a = input()
count = 0
num = 0
for i in string:
num +=1
if a.isupper():
if a == i:
count +=1
if num == len(string):
a = chr(ord(a)+32)
if a.islower():
if a == i:
count +=1
if num == len(string):
a = chr(ord(a)-32)
for i in string:
if a == i:
count +=1
print(count)
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