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<div class="tit">【制作一个简易的小时钟】</div>
<div class="date">2007年04月30日 星期一 22:59</div>
<table style="table-layout:fixed"><tr><td><div id="blog_text" class="cnt"><p>'添加 Line1 Line2 Line3 Timer1</p><p>Dim xx1%, yy1% '宣告变量xx1,yy1为整型(给圆心用的)<br>Private Sub Form_Load()<br> Me.AutoRedraw = True '重画为真<br> '窗体置中<br> Me.Move (Screen.Width - Me.Width) \ 2, (Screen.Height - meiheight) \ 2<br> '计算圆心的x轴 xx1<br> xx1 = Me.Width \ 2<br> '计算圆心的y轴 yy1<br> yy1 = (Me.Height - 405) \ 2<br> '将下面3根针的起点x1,y1全定位在圆心上<br> Line1.X1 = xx1: Line1.Y1 = yy1<br> Line2.X1 = xx1: Line2.Y1 = yy1<br> Line3.X1 = xx1: Line3.Y1 = yy1<br> '画钟的外匡让线条粗一点<br> Me.DrawWidth = 5<br> '画一个圆<br> Me.Circle (xx1, yy1), 950<br> Line2.BorderWidth = 1 '秒针的粗度<br> Line2.BorderColor = QBColor(12) '秒针的颜色<br> <br> Line1.BorderWidth = 2 '分针的粗度<br> Line1.BorderColor = QBColor(14) '分针的颜色<br> <br> Line3.BorderWidth = 3 '时针的粗度<br> Line3.BorderColor = QBColor(10) '时针的颜色<br> Timer1.Interval = 500<br>End Sub</p><p>Private Sub Timer1_Timer()<br> Me.Caption = Time '标题栏显示现在时间<br> ' Second Hand '画秒针<br> '计算秒针的角度,每一秒是 360度除以60秒=6度, 所以要乘上6<br> sdeg = Second(Time) * 6<br> 'vb是以弧度为单位来计算,所以角度换算弧度是 3.14/180, 秒针跑了N度就乘上N<br> srad = (3.14 / 180) * sdeg<br> '900是秒针的长度,以圆心(line2的x1,y1)为准,计算出在这个弧度时line2.x2在什么位置<br> Line2.X2 = Line2.X1 + (900 * Sin(srad))<br> '900是秒针的长度,以圆心(line2的x1,y1)为准,计算出在这个弧度时line2.y2在什么位置<br> Line2.Y2 = Line2.Y1 - (900 * Cos(srad))</p><p> ' Minute Hand '画分针<br> '计算分针的角度,每一分是360度除以60分=6度, 所以要乘上6,秒针动分针也会动,所以还要加上秒针移动所产生的分针移动.<br> '秒针转了1圈360度,分针才会前进1分钟=6度,所以比例是 6/360等于 1/60<br> Mdeg = Minute(Time) * 6 + (sdeg * 1 / 60)<br> 'vb是以弧度为单位来计算,所以角度换算弧度是 3.14/180, 分针跑了N度就乘上N<br> mrad = (3.14 / 180) * Mdeg 'vb是以弧度为单位来计算,所以角度换算弧度是 3.14/180, 分针跑了N度就乘上N<br> '750是分针的长度,以圆心(line1的x1,y1)为准,计算出在这个弧度时line1.x2在什么位置<br> Line1.X2 = (750 * Sin(mrad)) + Line1.X1<br> '750是分针的长度,以圆心(line1的x1,y1)为准,计算出在这个弧度时line1.y2在什么位置<br> Line1.Y2 = Line1.Y1 - (750 * Cos(mrad))</p><p> ' Hour Hand '画时针<br>⌨️ 快捷键说明
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