while True:

try:

n1 = input()

n2 = input()

if n1 in n2:

print('true')

else:

print('false')

except:

break

错误原因审题不清，问的是字符，观看解析，采用集合

while True: try: n1 = input() set1 = set(n1) #print(set1) n2 = input() set2 = set(n2) #print(set2) #print(set1<set2) if set1 <= set2: # 我看解析说要取并集与小的集合比较。但是我不知道为啥<=就行了，如果有知道的踹我一下 print('true') else: print('false') except: break