查找字符串（富文本）指定元素

let content = '<title>来自'+ this.userInfo.realName +'的分享</title><content>'+this.shareContent.title+'</content><image>'+
this.shareContent.imgList[0].url+'</image>'
/* 聊天页面解析 */
console.log('解析后的参数');

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“<title>来自杨博文的分享</title>

<content>测试一下</content>

<image>http://*****:5000/developtest/20210118/9a020a7967784e24a0d2e7b1efd3b2db.jpg</image>”

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let title = this.searchString(content,'title');
console.log(title);
let detail = this.searchString(content,'content');
console.log(detail);
let imgurl = this.searchString(content,'image');
console.log(imgurl);
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searchString(data,document){
let index = data.indexOf('<'+document+'>');
let index1 = data.indexOf('</'+document+'>');
return data.substring(index+document.length+2,index1);
}