jquery中的函数index和自定义的冲突怎么解决呢??

JScript code

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这个里面的index() 冲突,我要怎么解决呢?我把这个改成 Index也不行
报错
TypeError: $(this).index is not a function


[解决办法]
你光贴jquery，又不贴自己的，让我们怎么看呀？