说明 / 示例
{
"accessid": "LTAI5tEuX79qRCoP7pZGMPut",
"host": "oss-cn-beijing.aliyuncs.com",
"policy": "eyJleHBpcmF0aW9uIjoiMjAyMS0wNS0yNlQxMzozMTozNVoiLCJjb25kaXRpb25zIjpbWyJjb250ZW50LWxlbmd0aC1yYW5nZSIsMCwxMDQ4NTc2MDAwXSxbInN0YXJ0cy13aXRoIiwiJGtleSIsInVwbG9hZFwvMjAyMTA1MjZcLyJdXX0=",
"signature": "gOKj7G0tFv8wqHz8RSq7EfwMyyE=",
"expire": 1622007095,
"dir": "upload/20210526/"
}