比如:1.txt的内容为:{Every night in my dreams I see you , I feel you每一个夜晚, 在我的梦,我看见你,我感觉到你,That is how I know you go on我懂得你的心123745468:576---786>>。。。。。}我要只留下{Every night in my dreams I see you , I feel youThat is how I know you go on}