chart.js 里添加图表的清单：

var legend = myDoughnut.generateLegend();
$("#chart_legend").html(legend);

chart.js 里修改Doughnut的部分：
legendTemplate: "<ul class=\"<%=name.toLowerCase()%>-legend\"><% for (var i=0; i<segments.length; i++){%><li><span style=\"background-color:<%=segments[i].fillColor%>\"></span><%if(segments[i].label){%><%=segments[i].label%><%}%><%=segments[i].value%></li><%}%></ul>"

<script src="~/Scripts/Chart.js"></script>
<div class="pr">
<div class="chart_padd">
<canvas id="chart-area" width="300" height="300" />
</div>
<div class="chart_word">
<strong>12,648.09</strong>总资产
</div>
</div>
<div id="chart_legend">
</div>

<script>

var doughnutData = [
{
value: 300,
color: "#007bb3",
highlight: "#005d87",
label: "可用金额",
name: "可用金额"
},
{
value: 50,
color: "#b2e1f7",
highlight: "#90ceeb",
label: "冻结金额",
name: "可用金额"

},
{
value: 100,
color: "#fc8e0c",
highlight: "#d37609",
label: "待收本金",
name: "可用金额"
},
{
value: 40,
color: "#7cbc27",
highlight: "#66a314",
label: "待收利息",
name: "可用金额"
},
{
value: 120,
color: "#f54141",
highlight: "#d12626",
label: "借款负债",
name: "可用金额"
}

];

window.onload = function () {
var ctx = document.getElementById("chart-area").getContext("2d");

window.myDoughnut = new Chart(ctx).Doughnut(doughnutData, { responsive: true });
var legend = myDoughnut.generateLegend();
$("#chart_legend").html(legend);
};

</script>