slide0079.htm
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<title>第八章 常用控件与系统对象</title>
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<div style='text-align:justify;mso-line-spacing:"125 50 0";position:absolute;
top:9.0%;left:8.42%;width:27.34%;height:6.0%'><nobr><span lang=EN-US
style='font-family:"Times New Roman";mso-ascii-font-family:"Times New Roman";
mso-fareast-font-family:"Arial Unicode MS";font-size:117%;mso-fareast-language:
ZH-CN'><b>4</b></span><span style='font-family:宋体;mso-fareast-font-family:
宋体;font-size:117%'><b>.</b></span><span lang=EN-US style='font-family:"Times New Roman";
mso-ascii-font-family:"Times New Roman";mso-fareast-font-family:"Arial Unicode MS";
font-size:117%;mso-fareast-language:ZH-CN'><b>Selected</b></span><span
style='font-family:宋体;mso-fareast-font-family:宋体;font-size:117%'><b>属性</b></span><span
style='font-family:"Arial Unicode MS";mso-fareast-font-family:"Arial Unicode MS";
font-size:117%;display:none'><b> </b></span></nobr></div>
<div style='text-align:justify;mso-line-spacing:"125 50 0";position:absolute;
top:19.25%;left:8.42%;width:88.95%;height:18.5%'><b><span
style='mso-spacerun:yes'> </span></b><span
style='font-family:宋体;mso-fareast-font-family:宋体'><b>该属性返回或设置列表框控件中的一个项目的选择状态。该属性是一个逻辑类型的数组,数组元素个数与列表框中的项目数相同,其下标的变化范围与</b></span><span
lang=EN-US style='font-family:"Times New Roman";mso-ascii-font-family:"Times New Roman";
mso-fareast-font-family:"Arial Unicode MS";mso-fareast-language:ZH-CN'><b>List</b></span><span
style='font-family:宋体;mso-fareast-font-family:宋体'><b>属性相同。</b></span><span
style='font-family:"Arial Unicode MS";mso-fareast-font-family:"Arial Unicode MS";
display:none'><b> </b></span></div>
<div style='mso-line-spacing:"125 50 0"'><span style='position:absolute;
top:41.75%;left:8.42%;width:104.49%;height:5.25%'><b><span
style='mso-spacerun:yes'> </span></b><span
style='font-family:宋体;mso-fareast-font-family:宋体'><b>例如:</b></span><span
lang=EN-US style='color:red;mso-fareast-language:ZH-CN'><b>List1.Selected</b></span><span
style='font-family:宋体;mso-fareast-font-family:宋体;color:red'><b>(</b></span><span
lang=EN-US style='color:red;mso-fareast-language:ZH-CN'><b>0</b></span><span
style='font-family:宋体;mso-fareast-font-family:宋体;color:red'><b>)</b></span><span
lang=EN-US style='color:red;mso-fareast-language:ZH-CN'><b>=True</b></span><span
style='font-family:宋体;mso-fareast-font-family:宋体'><b>表示列表框</b></span><span
lang=EN-US style='mso-fareast-language:ZH-CN'><b>List1</b></span><span
style='font-family:宋体;mso-fareast-font-family:宋体'><b>的第一</b></span></span><span
style='position:absolute;top:48.5%;left:8.42%;width:105.05%;height:5.25%'><span
style='font-family:宋体;mso-fareast-font-family:宋体'><b>个项目被选中,此时</b></span><span
lang=EN-US style='mso-fareast-language:ZH-CN'><b>ListIndex</b></span><span
style='font-family:宋体;mso-fareast-font-family:宋体'><b>的值设置为</b></span><span
lang=EN-US style='mso-fareast-language:ZH-CN'><b>0</b></span><span
style='font-family:宋体;mso-fareast-font-family:宋体'><b>。</b></span><span
lang=EN-US style='mso-fareast-language:ZH-CN'><b>Selected</b></span><span
style='font-family:宋体;mso-fareast-font-family:宋体'><b>属性在</b></span></span><span
style='position:absolute;top:55.25%;left:8.42%;width:96.62%;height:5.25%'><span
style='font-family:宋体;mso-fareast-font-family:宋体'><b>设计时</b></span><span
style='font-family:宋体;mso-fareast-font-family:宋体'><b>是不可用的,即无法在属性窗口中设置属性值。</b></span><b>
</b></span></div>
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<div style='text-align:justify;mso-line-spacing:"120 10 0";position:absolute;
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style='font-family:"Times New Roman";mso-ascii-font-family:"Times New Roman";
mso-fareast-font-family:"Arial Unicode MS";mso-fareast-language:ZH-CN'><b>5</b></span><span
style='font-family:宋体;mso-fareast-font-family:宋体'><b>.</b></span><span
lang=EN-US style='font-family:"Times New Roman";mso-ascii-font-family:"Times New Roman";
mso-fareast-font-family:"Arial Unicode MS";mso-fareast-language:ZH-CN'><b>NewIndex</b></span><span
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display:none'><b> </b></span></nobr></div>
<div style='mso-line-spacing:"120 10 0"'><span style='position:absolute;
top:72.0%;left:8.42%;width:104.68%;height:5.25%'><b><span
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style='position:absolute;top:79.0%;left:8.42%;width:100.74%;height:4.75%'><span
style='font-family:宋体;mso-fareast-font-family:宋体'><b>如果在列表中已没有项目或删除了一个项目,该属性将返</b></span></span><span
style='position:absolute;top:85.0%;left:8.42%;width:87.26%;height:5.25%'><span
style='font-family:宋体;mso-fareast-font-family:宋体'><b>回</b></span><span
lang=EN-US style='mso-fareast-language:ZH-CN'><b>-1</b></span><span
style='font-family:宋体;mso-fareast-font-family:宋体'><b>。</b></span><b> </b></span></div>
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