【Matlab开启网格】开启Matlab画图网格

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示例代码和图片如下：

h = figure;
load diff_ppp.mat
plot(diff_ppp)
gca_h = gca;
set(gca_h, 'YGrid', 'on')
set(gca_h, 'YMinorGrid', 'on')

h = figure;
load diff_ppp.mat
plot(diff_ppp)
gca_h = gca;
set(gca_h, 'YTick', [-1:0.2:1])
set(gca_h, 'YGrid', 'on')
set(gca_h, 'YMinorGrid', 'on')