比如说这张图 已知gif地址:http://image2.sinajs.cn/newchart/min/n/sz000155.gif
能不能不用保存到本地计算机
而直接读取的时候读取成  
base64Binary R0lGODlhIQIsAfcAAAAAAAwLBxkGBQ4ODhAQEBsSChUVFS4TDB8eGQkA9koPCDAAzy4mFVgAp2UYC0IqEUYuBVwiDEAsI1QnFX8AgDU1NUozFlgxD6cBWVY5FnIwEmQ4Gc0AMlhDHPEADlVJMEpKSm1IHOUBWpY3FZMyVY9IGXRWIEFmWGNYUmpdPXJgHQB8HK9EGGBgX4lXIACoAHhkMyt4m4VkJtstbv8A/65UHZBlG3plXotkNW5tZ5hmJMxQGJtlNIlzKHJyce1AQCGqOIl1PLtiIRClmXd4d65qL5x1J9hYIAKg6IR2bHx8e+FcGtpiG8drKZ1/MXCNbYGBgY2AbdxnIbd5KlKUr9hpMoaFhN1ZiPxUVOVqH9VxKpKFd5KFel2wKcx4KqCKSYqKivBrIJWJfoyMjK2NNJmNf992PJCPkJqPg+
类似于这种字节数组的字符串?我真的是小菜一个 不过我也在学习 望各位大侠指教下~  谢谢~