设置，邮件，添加新帐户里有 mobile me 选项吗？那里不加帐户是不会有 send to mobile me 的

To split file named <inputfilename>:
split -b2047m inputfilename

To put the files back together, in the terminal simply type:
cat x* > completefilename

@lianghai 小尺寸的确和背景混得有点厉害。不看大图直接看小图甚至一下子看不出来是啥。