检查给定字符串是否只包含一种ch

Question

具体来说，如果我有字符串a:a = "uuuuuuuuuuuuuiuuuuu"和字符串b:b = "uuuuuuuuuuuuuuuu"，我想检查给定的字符串是否只包含一种字符。在第一个字符串中，它包含另一个名为i的字符，因此它将返回false。字符串b只有一种类型，因此它将返回true

Answer 1

您可以将字符串转换为集合并查看其长度：

a = "uuuuuuuuuuuuuiuuuuu"
print(len(set(a)) == 1)
# False

b = "uuuuuuuuuuuuuuuu"
print(len(set(b)) == 1)
#True