内容 1：在一个波形图控件中用 2 种不同的线宽显示一条正弦曲线和一条余弦曲线。内容2：在一个波形图表控件中显示 3 条曲线，分别用红、绿、蓝 3 种颜色表示范围 0～1、0～5 和 0～10 的 3 个随机数。内容三：产生一个 10 行 10 列的二维数组，数组成员为 0～100 之间的任意整型数，用强度图显示出来。(Content 1: a sine curve and a cosine curve are displayed with 2 different line widths in a waveform control. Content 2: 3 curves are displayed in a wavy chart control. They represent 3 random numbers of 0~1, 0~5 and 0~10 in 3 colors, red, green and blue, respectively. Content three: produce a two-dimensional array of 10 lines and 10 columns, and the array members are arbitrary integer numbers between 0~100, and are displayed by the intensity map.)