........樓上厲害呀.....。range里的范圍要中括號

樓主應(yīng)該老師的版本比你的低，我也是郁悶了好一陣，希望下面的代碼能夠幫到你

var?scale_x?=?d3.scaleLinear()
????.domain([0,data.length-1])
????.range([0,g_width]);
var?scale_y?=?d3.scaleLinear()
????.domain([0,d3.max(data)])
????.range([g_height,0])
????
var?line_generator?=?d3.line()
.x(function?(d,i)?{
????????return?scale_x(i);
????????//?return?i;
????})
.y(function?(d)?{
????????return?scale_y(d);
????????//?return?d;
????})
????.curve(d3.curveCardinal)

//?繪制曲線
d3.select("g")
.append("path")
.attr("d",line_generator(data))