描述：指定字符界分的前后两个字符串位置对换
查找：(.*)\|(.*)\.swf
替换：\2|\1.swf

实例：
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砖头文-15 见家长|vlike_swf_477-11793.swf
砖头文14:PHOTO STICKER|27001.swf
砖头文-在雨中[11]|x20040214090.swf

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vlike_swf_477-11793|砖头文-15 见家长.swf
27001|砖头文14:PHOTO STICKER.swf
x20040214090|砖头文-在雨中[11].swf

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