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	<title>Serenity &#187; 质数</title>
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	<description>-非淡泊无以明志，非宁静无以致远</description>
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		<title>VB中如何判断是否为质数</title>
		<link>http://seanchenxi.com/how-to-verify-a-prime-number-in-vb-cn.html</link>
		<comments>http://seanchenxi.com/how-to-verify-a-prime-number-in-vb-cn.html#comments</comments>
		<pubDate>Wed, 27 Feb 2008 09:57:43 +0000</pubDate>
		<dc:creator>Sean</dc:creator>
				<category><![CDATA[Code]]></category>
		<category><![CDATA[中文]]></category>
		<category><![CDATA[VB]]></category>
		<category><![CDATA[质数]]></category>

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		<description><![CDATA[See this post in : English Version or French Version  Private Sub Command1_Click() 　r = InputBox(&#8220;请输入您要判断的数字&#8221;) 　For i = 2 To r 　　　If Val(r) Mod i = 0 And i &#60;&#62; Val(r) Then &#8216;这里给出了非质数的条件 　　　　MsgBox (&#8220;此数为非质数&#8221;) 　　　　Exit Sub 　　　End If 　Next i 　MsgBox (&#8220;此数为质数&#8221;) End Sub &#8216;列出1到100中的质数与非质数 Private Sub Command2_Click() 　r = 100 &#8216;设定最大范围为100 　Me.Caption = [...]]]></description>
			<content:encoded><![CDATA[<p align="left">See this post in : <a href="http://seanchenxi.com/how-to-verify-a-prime-number-in-vb-en.html" title="How to verify a prime number in VB">English Version</a> or <a href="http://seanchenxi.com/comment-verifier-un-nomber-premier-dans-vb.html" title="Comment vérifier un premier nombre dans VB">French Version</a></p>
<p> Private Sub Command1_Click()<br />
　r = InputBox(&#8220;请输入您要判断的数字&#8221;)<br />
　For i = 2 To r<br />
　　　If Val(r) Mod i = 0 And i &lt;&gt; Val(r) Then &#8216;这里给出了非质数的条件<br />
　　　　MsgBox (&#8220;此数为非质数&#8221;)<br />
　　　　Exit Sub<br />
　　　End If<br />
　Next i<br />
　MsgBox (&#8220;此数为质数&#8221;)<br />
End Sub</p>
<p><span id="more-34"></span><br />
&#8216;列出1到100中的质数与非质数<br />
Private Sub Command2_Click()<br />
　r = 100 &#8216;设定最大范围为100<br />
　Me.Caption = 0 &#8216;把按钮2的显示名称设为0，为了之后显示总数<br />
　Me.ForeColor = vbBlue &#8216;把按钮2的显示名称的字体颜色设为蓝色<br />
　For j = 1 To r<br />
　　　For i = 2 To j<br />
　　　　　If Val(j) Mod i = 0 And i &lt;&gt; Val(j) Then<br />
　　　　　　Me.ForeColor = vbBlue &#8216;非质数为蓝色<br />
　　　　　　Exit For<br />
　　　　　Else<br />
　　　　　　Me.ForeColor = vbRed &#8216;质数为红色<br />
　　　　　End If<br />
　　　Next i<br />
　　Print &#8221; &#8221; &amp; Format(j, &#8220;000&#8243;);<br />
　　If Me.ForeColor = vbRed Then Me.Caption = Me.Caption + 1 &#8216;显示质数的总数<br />
　　If j Mod 10 = 0 Then Print<br />
　Next j<br />
End Sub</p>
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