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JavaScript

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/**
* 上传文件。
* 作者tmzdy
* 时间20217289:14:53
* 联系zhongjihan@sina.com
* 预览图片。
* @param {Object} url 必填 当前预览的图片链接。
* @param {Object} list 可以是url数组也可以是对象数据比如["http:url"] or [{url:"https:url",...}]
* @param {Object} rangKey 如果list是对象数组需要提供url字段。
*/
function previewImg(url,list,rangKey){
if(!url){
uni.$tm.toast("参数有误");
return;
}
if(arguments.length==1){
uni.previewImage({
current:url,
urls:list?list:[url]
})
}else if(arguments.length===3){
if(typeof list[0] === 'object' && typeof list[0] !== 'undefined'){
let urls = [];
list.forEach(item=>{
urls.push(item[rangKey]);
})
uni.previewImage({
current:url,
urls:urls,
fail: (er) => {
console.warn(er)
}
})
}else if(typeof list[0] === 'string'){
uni.previewImage({
current:url,
urls:list
})
}
}else{
uni.$tm.toast("参数有误");
}
}
export default previewImg