We　experimentally　report　on　the　evolution　from　singly-dressed　to　doubly-dressed　four-wave　mixing　(FWM)　process　by　controlling　the　powers　of　the　probe,　the　pump　and　the　dressing　fields　respectively.　The　differences　in　the　enhancement　and　the　suppression　of　FWM　signal　between　the　two-level　and　cascade　three-level　atomic　systems　are　observed　and　explained　by　the　multi-dressed　effect　theoretically.　Both　the　x　direction　and　the　y　direction　spatial　splittings　of　the　degenerate-FWM　(DWFM)　beams　are　obtained.　We　also　investigate　the　switch　between　the　enhancement　and　the　suppression　of　the　DWFM　signals　and　between　its　spatial　splittings　in　x　direction　and　y　direction.　The　spatial　splittings　in　x　direction　and　y　direction　can　be　controlled　by　the　relative　position　and　the　intensity　of　the　involved　laser　beams.　Such　a　study　can　be　useful　for　optimizing　the　efficiency　of　the　FWM　process　and　providing　potential　applications　in　spatial　signal　processing.