图片转base64插件

Module名:base64

1. 图片base64编码: base64EncodedImage:callback:

1.1 入参

图片路径

1.2 出参

{"res":"res","encodedImageStr":"fdsfsdfsdfsfsfsdfs...."}

2.iot aliyun 登出: compressBase64EncodedImage:callback:

2.1 入参

{"imgPath" : "图片路径", "maxByte" : "指定压缩大小（单位字节）"}

2.2 出参

{"res":"res","encodedImageStr":"fdsfsdfsdfsfsfsdfs...."}