链接: https://pan.baidu.com/s/1KtMBhhcJVS_aJLbgnCboVQ 密码: 6xj6
s = "hello jeapedu.com"
i = 0
while i < len(s) - 1:
#print(s[i], end=' ')
#if s[i] == "e":
if s[i : i + 2] == "ea":
print(i, s[i : i + 2])
i += 1
i = 0
while i < 10:
if i % 2 == 0:
print(i, end=' ')
i += 1