{"errcode":40001,"errmsg":"invalid credential, access_token is invalid or not latest hint: [3G1y5a0106vr61!]"}
这种情况跟这个库没有直接关系。
请检查一下是否有别的地方同时请求了access token,导致微信服务器发放了新的access token给别人。尤其是dev环境
下载到本地的文件size很小,只有100来字节,(
eyJlcnJjb2RlIjo0MDAwMSwiZXJybXNnIjoiaW52YWxpZCBjcmVkZW50aWFsLCBhY2Nlc3NfdG9rZW4gaXMgaW52YWxpZCBvciBub3QgbGF0ZXN0IGhpbnQ6IFszRzF5NWEwMTA2dnI2MSFdIn0=
)
方法:
var str = "eyJlcnJjb2RlIjo0MDAwMSwiZXJybXNnIjoiaW52YWxpZCBjcmVkZW50aWFsLCBhY2Nlc3NfdG9rZW4gaXMgaW52YWxpZCBvciBub3QgbGF0ZXN0IGhpbnQ6IFszRzF5NWEwMTA2dnI2MSFdIn0=";
byte[] imageBytes = Convert.FromBase64String(str);
string str1 =