20181213151125197.png
20181213151200809.png
formatter:function(val){
console.log("label汉字--",val);
var strs = val.split(''); //字符串数组
var str = ''
for(var i = 0, s; s = strs[i++];) { //遍历字符串数组
str += s;
if(!(i % 4)) str += '\n'; //按需要求余
}
return str
}
