��共属性" title="公共属性" /></td><td><span class="nolink">DateFormatString</span></td><td><div class="summary">
            Gets or sets how <a href="https://docs.microsoft.com/dotnet/api/system.datetime" target="_blank">DateTime</a> and <a href="https://docs.microsoft.com/dotnet/api/system.datetimeoffset" target="_blank">DateTimeOffset</a> values are formatted when writing JSON text,
            and the expected date format when reading JSON text.
            The default value is <span class="code"