easyui布局隐藏伸缩按钮

1、

在html中加入

<script>
/**
 * layout方法扩展
 * @param {Object} jq
 * @param {Object} region
 */
$.extend($.fn.layout.methods, {
	/**
	 * 移除header
	 * @param {Object} jq
	 * @param {Object} region
	 */
    removeHeader: function(jq, region){
        return jq.each(function(){
            var panel = $(this).layout("panel",region);
            if(panel){
                panel.panel('removeHeader');
				panel.panel('resize');
            }
        });
    },
	/**
	 * 增加header
	 * @param {Object} jq
	 * @param {Object} params
	 */
    addHeader:function(jq, params){
        return jq.each(function(){
            var panel = $(this).layout("panel",params.region);
			var opts = panel.panel("options");
            if(panel){
				var title = params.title?params.title:opts.title;
                panel.panel('addHeader',{title:title});
				panel.panel('resize');
            }
        });
    },
    /**
     * 面板是否存在和可见
     * @param {Object} jq
     * @param {Object} params
     */
    isVisible: function(jq, params) {
        var panels = $.data(jq[0], 'layout').panels;
        var pp = panels[params];
        if(!pp) {
            return false;
        }
        if(pp.length) {
            return pp.panel('panel').is(':visible');
        } else {
            return false;
        }
    },
    /**
     * 隐藏除某个region，center除外。
     * @param {Object} jq
     * @param {Object} params
     */
    hidden: function(jq, params) {
        return jq.each(function() {
            var opts = $.data(this, 'layout').options;
            var panels = $.data(this, 'layout').panels;
            if(!opts.regionState){
                opts.regionState = {};
            }
            var region = params;
            function hide(dom,region,doResize){
                var first = region.substring(0,1);
                var others = region.substring(1);
                var expand = 'expand' + first.toUpperCase() + others;
                if(panels[expand]) {
                    if($(dom).layout('isVisible', expand)) {
                        opts.regionState[region] = 1;
                        panels[expand].panel('close');
                    } else if($(dom).layout('isVisible', region)) {
                        opts.regionState[region] = 0;
                        panels[region].panel('close');
                    }
                } else {
                    panels[region].panel('close');
                }
                if(doResize){
                    $(dom).layout('resize');
                }
            };
            if(region.toLowerCase() == 'all'){
                hide(this,'east',false);
                hide(this,'north',false);
                hide(this,'west',false);
                hide(this,'south',true);
            }else{
                hide(this,region,true);
            }
        });
    },
    /**
     * 显示某个region，center除外。
     * @param {Object} jq
     * @param {Object} params
     */
    show: function(jq, params) {
        return jq.each(function() {
            var opts = $.data(this, 'layout').options;
            var panels = $.data(this, 'layout').panels;
            var region = params;   

            function show(dom,region,doResize){
                var first = region.substring(0,1);
                var others = region.substring(1);
                var expand = 'expand' + first.toUpperCase() + others;
                if(panels[expand]) {
                    if(!$(dom).layout('isVisible', expand)) {
                        if(!$(dom).layout('isVisible', region)) {
                            if(opts.regionState[region] == 1) {
                                panels[expand].panel('open');
                            } else {
                                panels[region].panel('open');
                            }
                        }
                    }
                } else {
                    panels[region].panel('open');
                }
                if(doResize){
                    $(dom).layout('resize');
                }
            };
            if(region.toLowerCase() == 'all'){
                show(this,'east',false);
                show(this,'north',false);
                show(this,'west',false);
                show(this,'south',true);
            }else{
                show(this,region,true);
            }
        });
    },
    /**
     * 设置某个region的宽度或者高度(不支持center)
     * @param {[type]} jq     [description]
     * @param {[type]} params [description]
     */
    setRegionSize:function(jq,params){
        return jq.each(function(){
            if(params.region=="center")
                return;
            var panel = $(this).layout('panel',params.region);
            var optsOfPanel = panel.panel('options');
            if(params.region=="north" || params.region=="south"){
                optsOfPanel.height = params.value;
            }else{
                optsOfPanel.width = params.value;
            }
            $(this).layout('resize');
        });
    },
    /**
     * 设置north south east west区域标题的图标
     * @param {[type]} jq     [description]
     * @param {[type]} params [description]
     */
    setHeaderIcon:function(jq,params){
        return jq.each(function(){
            if(params.region=="center")
                return;
            var panel = $(this).layout('panel',params.region);
            var title = panel.panel('header').find('>div.panel-title');
            var icon = panel.panel('header').find('>div.panel-icon');
            if(icon.length===0){
                if(title.length && params.iconCls != null){
                    $('<div class="panel-icon ' + params.iconCls + '"></div>').insertBefore(title);
                    title.addClass('panel-with-icon');
                }
            }else{
                if(params.iconCls == null){
                    icon.remove();
                    title.removeClass('panel-with-icon');
                }else{
                    icon.attr('class','').addClass('panel-icon ' + params.iconCls);
                }
            }
        });
    },
    /**
     * 设置north south east west的split是否可以拖动
     * @param {[type]} jq     [description]
     * @param {[type]} params [description]
     */
    setSplitActivateState:function(jq,params){
        return jq.each(function(){
            if(params.region=="center")
                return;
            $(this).layout('panel',params.region).panel('panel').resizable(params.disabled?'disable':'enable');
        });
    },
    /**
     * 设置north south east west的split是否显示
     * @param {[type]} jq     [description]
     * @param {[type]} params [description]
     */
    setSplitVisiableState:function(jq,params){
        return jq.each(function(){
            if(params.region=="center")
                return;
            var panel = $(this).layout('panel',params.region);
            panel.panel('options').split = params.visible;
            if(params.visible){
                panel.panel('panel').addClass('layout-split-north');
            }else{
                panel.panel('panel').removeClass('layout-split-north');
            }
            //panel.panel('resize');
            $(this).layout('resize');
        });
    },
    /**
     * 设置region的收缩按钮是否可见
     * @param {[type]} jq     [description]
     * @param {[type]} params [description]
     */
    setRegionToolVisableState:function(jq,params){//就是调用这个方法，其他方法也可以删掉
        return jq.each(function(){
            if(params.region=="center")
                return;
            var panels = $.data(this, 'layout').panels;
            var panel = panels[params.region];
            var tool = panel.panel('header').find('>div.panel-tool');
            tool.css({display:params.visible?'block':'none'});
            var first = params.region.substring(0,1);
            var others = params.region.substring(1);
            var expand = 'expand' + first.toUpperCase() + others;
            if(panels[expand]){
                panels[expand].panel('header').find('>div.panel-tool').css({display:params.visible?'block':'none'});
            }
        });
    }
});
</script>

2、在body中加入onload事件

3、写onload事件

function close(){
        $(document.body).layout('setRegionToolVisableState',{region:'west',visible:false});//红色的位置填要隐藏的父选择器，我的div父亲是body，body的选择器为document.body
}

4、效果为：