a = ["客户信息管理","信息服务系统","新一代系统","核心化系统"]
b = ["核心化系统","新一代系统","信息服务系统"]
for i in a:
if i not in b:
a.remove(i)
print(a)
a = ["客户信息管理","信息服务系统","新一代系统","核心化系统"]
b = ["核心化系统","新一代系统","信息服务系统"]
for i in a:
if i not in b:
a.remove(i)
print(a)