小中大cuturl('http://www.google.com.hk/url?sa=t&rct=j&q=%E6%B2%B9%E4%B8%AD%E5%86%9C%E8%8D%AF&source=web&cd=5&ved=0CF8QFjAE&url=http%3A%2F%2Fwww.antpedia.com%2Fdistdl.php%3Fid%3D1341&ei=qhoFUIG8D8WfiAeb0PzXCA&usg=AFQjCNFkMmAyLelGsLSHM2Z2_uauPpWrJQ')
cuturl('http://www.google.com.hk/url?sa=') ... Z1B3spMkWAiyincaeWg
希望对你有用。