$this->show(U('Index/callFun',array('cate_id'=>1,'status'=>2)));
$this->success("跳转",U("Test/index"));
$this->error("跳转",U("Test/index"));
$this->redirect("Test/index", array("id"=>1),3, "乱码");

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redirect使用U方法的话，容易引起错误。

.