bonus和bonus,则前者无效。</dd><dt><span class="parameter">balance</span> (Optional)</dt><dd>类型：<a href="https://docs.microsoft.com/dotnet/api/system.nullable-1" target="_blank">System<span id="LST44F33E75_10"></span><script type="text/javascript">AddLanguageSpecificTextSet("LST44F33E75_10?cs=.|vb=.|cpp=::|nu=.|fs=.");</script>Nullable</a><span id="LST44F33E75_11"></span><script type="text/javascript">AddLanguageSpecificTextSet("LST44F33E75_11?cs=&lt;|vb=(Of |cpp=&lt;|fs=&lt;'|nu=(");</script><a