def insertWebsite(self, url, domain):
		'''增加一个网页,标记为未访问,并对相应的domain增加其入度'''
		cur = self.conn.cursor()
		cur.execute("SELECT 1 FROM Domains WHERE domain=?", (domain,))
		result = cur.fetchone()
		if not result:
			# 未有对应domain记录, 先创建domain, 把入度设为1
			if VERBOSE:
				print 'Spot Domain:',domain
			self.insertDomain(domain, indegree=1)
			cur.execute("SELECT did FROM Domains WHERE domain=?", (domain,))
			did = cur.fetchone()[0]
		else:
			did = result[0]
			# 对应的domain记录已经存在, 对其入度+1
			cur.execute("UPDATE Domains SET outdegree=outdegree+1 WHERE domain=?", (domain,))

		cur.execute("INSERT INTO Websites VALUES (NULL,?,?,NULL,0)", (did, url,))
		# 写入到文件
		self.conn.commit()
def mcv_hbj(mcv, log=True, ax=0):
    """plot H, B, J of mcv dict"""
    import femagtools.mcv
    MUE0 = 4e-7*np.pi
    ji = []

    csiz = len(mcv['curve'])
    if ax == 0:
        ax = plt.gca()
    ax.set_title(mcv['name'])
    for k, c in enumerate(mcv['curve']):
        bh = [(bi, hi*1e-3)
              for bi, hi in zip(c['bi'],
                                c['hi'])]
        try:
            if csiz == 1 and mcv['ctype'] in (femagtools.mcv.MAGCRV,
                                              femagtools.mcv.ORIENT_CRV):
                ji = [b-MUE0*h*1e3 for b, h in bh]
        except Exception:
            pass
        bi, hi = zip(*bh)

        label = 'Flux Density'
        if csiz > 1:
            label = 'Flux Density ({0}°)'.format(mcv.mc1_angle[k])
        if log:
            ax.semilogx(hi, bi, label=label)
            if ji:
                ax.semilogx(hi, ji, label='Polarisation')
        else:
            ax.plot(hi, bi, label=label)
            if ji:
                ax.plot(hi, ji, label='Polarisation')
    ax.set_xlabel('H / kA/m')
    ax.set_ylabel('T')
    if ji or csiz > 1:
        ax.legend(loc='lower right')
    ax.grid()