处理后端返回的html代码中样式代码

                        // 处理返回的html代码，删除标签中style中的背景颜色样式
                        var tempElement = document.createElement("div");
                        tempElement.innerHTML = this.detailData.contenttext;
                        var sectionList = tempElement.getElementsByTagName("*");
                        for (var i = 0; i < sectionList.length; i++) {
                            var style = sectionList[i].getAttribute("style");
                            if (style) {
                                style = style.replace(/background-color:[^;]+;/g, "");
                                sectionList[i].setAttribute("style", style);
                                // 设置img标签的样式
                                var imgList = sectionList[i].getElementsByTagName("img");
                                for (var j = 0; j < imgList.length; j++) {
                                    imgList[j].style.width = "100%";
                                    imgList[j].style.height = "auto";
                                }
                                // 设置文字颜色 包括但不限于p标签、span标签
                                var colorList = sectionList[i].getElementsByTagName("*");
                                for (var j = 0; j < colorList.length; j++) {
                                    if (colorList[j].style) {
                                        colorList[j].style.color = "#fff";
                                    }
                                }
                            }
                        }
                        this.detailData.contenttext = tempElement.innerHTML;