Python判断一个字符串是否包含另一个字符串

a = 'abcdefg'

b = 'bcd'

c = 'fgh'

print(b in a)

print(c in a)

输出True和False

a = 'abcdefg'

b = 'bcd'

c = 'fgh'

print(a.find(b))

print(a.find(c))

输出1和-1。