如何在Open layer 3中設置矢量圖層的樣式選擇？

Question

我只畫了一個多邊形並對其進行修改。 如何打開層設置樣式的多邊形的選擇3

感謝

Answer 1

var selectClick = new ol.interaction.Select(); 
map.addInteraction(selectClick); 
var sf =selectClick.getFeatures(); 
sf.on('add', addSelectionListener); 
sf.on('remove', removeSelectionListener); 

function addSelectionListener(){ 
var sf = selectClick.getFeatures(); 
sf.forEach(function(feature){ 
feature.setStyle(styles); 
}); 
} 
function removeSelectionListener(){ 
var sf = source.getFeatures(); 
sf.forEach(function(feature){ 
feature.setStyle(null); 
}); 
}