##七牛云存储初试
1、收费说明
10GB永久免费存储空间
每月10GB下载流量
每月10万次Put请求
每月100万次Get请
其他消费 https://support.qiniu.com/hc/kb/article/112874/
2、token
上传策略
http://developer.qiniu.com/docs/v6/api/reference/security/upload-token.html
在线生成token（仅限测试使用）
http://jsfiddle.net/gh/get/extjs/4.2/icattlecoder/jsfiddle/tree/master/uptoken
3、图片缩略图
直接在url后面拼接
//限定长边，生成不超过300x300的缩略图
http://o7q1p0cew.bkt.clouddn.com/2016-05-25_16:59:35_r7Vcmt46.jpg?imageMogr2/thumbnail/300x300
//旋转45度等
?imageMogr2/rotate/45
相关链接
http://developer.qiniu.com/code/v6/api/kodo-api/image/imagemogr2.html
4、视频帧视图
？vframe/格式/offset/截取时刻/w/宽/h/高
http://developer.qiniu.com/code/v6/api/dora-api/av/vframe.html
5、上传接口测试成功
- (void)uploadVedioToQNFilePath:(NSString *)filePath {
NSData* data = [NSData dataWithContentsOfFile:filePath];
NSString *fileName = [NSString stringWithFormat:@"%@_%@.mp4", [self getDateTimeString], [self randomStringWithLength:8]];
QNUploadOption *uploadOption = [[QNUploadOption alloc] initWithMime:nil progressHandler:^(NSString *key, float percent) { NSLog(@"percent == %.2f", percent); } params:nil checkCrc:NO cancellationSignal:nil];
[self.upManager putData:data key:fileName token:self.token complete: ^(QNResponseInfo *info, NSString *key, NSDictionary *resp) {
NSLog(@" --->> Info: %@ ", info); NSLog(@" ---------------------"); NSLog(@" --->> Response: %@, ", resp); } option:uploadOption];
}