将plt.xticks的函数放在画图的下面调用，例如sns的下面调用，放在上边有可能不好使

def draw_picture(file_name,matirx):
    plt.cla()
    plt.figure(dpi=200, figsize=(8, 18))
    sns.set()
    #plt.xlabel('feature', {'family': 'Verdana', 'weight': 'normal', 'size': 23, 'color': '#000000'})
    x_label=['A','C','D','E','F','G','H','I','K','L','M','N','P','Q','R','S','T','V','W','Y','X']
    x_index=[0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20]
    # x_label=['A','C']
    # x_index=[0,1]

    # sns.heatmap(data=matirx,vmin=0.0,vmax=0.30, square=False, robust=True,cmap="Wistia")
    sns.heatmap(data=matirx[:30], square=False, robust=True, cmap="Wistia")
    plt.xticks(ticks=x_index, labels=x_label, ha='left')
    plt.title("saliency map")
    # plt.gcf().set_size_inches(240, 1000)
    plt.savefig(file_name)
    # plt.show()