记录一下字符串压缩
将"@\"NSString\""转成NSString
type = [type stringByTrimmingCharactersInSet:[NSCharacterSet characterSetWithCharactersInString:@"@\""]];
将"@\"NSString\""转成NSString
type = [type stringByTrimmingCharactersInSet:[NSCharacterSet characterSetWithCharactersInString:@"@\""]];