中文说明：有100个数据点，知道x，y，z的坐标，用命令把这些点拟合成空间的曲线?看点的分布应该是螺旋线，得出一个表达式来表达曲线，有程序
English Description：
There are 100 data points, know the coordinates of X, y, Z, use the command to fit these points into a space curve? Look at the distribution of points should be spiral, get an expression to express the curve, there is a program