js数组:
var workData = [];
// 添加元素
workData.push({'pk':'1','name':'1x'});
workData.push({'pk':'2','name':'2x'});
workData.push({'pk':'3','name':'3x'});
workData.push({'pk':'4','name':'4x'});
// 删除第一个元素
workData.shift();
// 删除最后一个元素
workData.pop();