1.JS 获取当前元素在数组中的索引
let arr = [{name: '测试'},{name: '假如'}]
如: data.parentAttrName = '测试'
let index = arr.map(item => item.name).indexOf(data.parentAttrName)
console.log(index) // 输出 0
2.获取当前元素索引
let arr = ["'sheng", "shi", "qu", "Jiedao"]
如: attr.name = 'sheng'
let currentAttrIndex = sequence.indexOf(attr.name)
console.log(currentAttrIndex) // 输出 0