let tapStepGestureRecognizer = UITapGestureRecognizer(target: self, action: Selector("enterStepDetail"))stepLogo.addGestureRecognizer(tapStepGestureRecognizer) func enterStepDetail(){ print("step detail ok") }//我現(xiàn)在的代碼,但是下面的方法不執(zhí)行。
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