题解 | #字符串字符匹配#
字符串字符匹配
https://www.nowcoder.com/practice/22fdeb9610ef426f9505e3ab60164c93
import sys
def all_chars_in_text(pattern,text):
pattern_set = set(pattern)
text_set = set(text)
return pattern_set.issubset(text_set)
List = []
for line in sys.stdin:
if line.strip() == "":
break
else:
X = line.strip()
List.append(X)
pattern = List[0]
text = List[1]
if all_chars_in_text(pattern,text):
print('true')
else:
print('false')
利用issubset方法，判断模式串set是否为文本串set的子集
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