js常用方法之: 预览大图(uniapp原生方法封装)

方法: 

//预览图片 pic可传单个图片地址字符串 或 图片数组(带index)
previewPic: function(pic, index) {if (!pic) return;if (index == undefined) {let array = [];array.push(pic);uni.previewImage({urls: array,current: array[0]});} else {uni.previewImage({urls: pic,current: index});}
},

调用:

1.字符串形式:

previewPic('https://xxxx.png')

2.数组形式: 

previewPic(['https://xxxx1.png', 'https://xxxx2.png'], 0)