​

        const getAttAndValueString = (args, isContent) => {

            let startIndex = 0

            const attr = args[0].map((item) => {

                return item.replace('\n', '').replace(/\s/g, '').trim()

            }).filter(item => item)

            const value = args.slice(1).filter(item => item)

            let resultString = ''

            attr.forEach((element, index) => {

                if (element.endsWith(':') || isContent) {

                    resultString += `${element}${value[startIndex]}`

                    startIndex++

                } else {

                    resultString += `${element}`

                }

            })

            return resultString

        }

        HTMLElement.prototype.styles = function () {

            let resultString = getAttAndValueString(Array.from(arguments))

            console.log("resultString", resultString)

            const styleAttr = this.getAttribute("style");

            if (styleAttr) {

                resultString = `${styleAttr.endsWith(";") ? styleAttr : styleAttr + ";"} ${resultString}`

            }

            this.setAttribute("style", resultString);

            return this

        }

        HTMLElement.prototype.props = function () {

            // let resultString = getAttAndValueString(Array.from(arguments))

            // let obj = resultString.split(";").filter(item => item.length > 0)

            // obj.forEach(item => {

            //     const [prop, ...value] = item.split(":");

            //     this.setAttribute(prop, value.join(":"))

            // })

            return this

        }

        HTMLElement.prototype.content = function () {

            // this.innerText = getAttAndValueString(Array.from(arguments), true)

            return this

        }

        var alink = document.querySelector('#alink')

        var color = 'red'

        var bgColor = 'blue'

        var url = 'http://baidu.com'

        alink.styles`

        color:${color};

        font-size:16px;

        background-color:${bgColor};

        `.props`

            href:${url};

            tabIndex:1;

        `.content`跳转到：${url}`