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<title>第二章</title>
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<div style='mso-line-spacing:"120 0 0";position:absolute;top:4.75%;left:9.36%;
width:88.2%;height:5.5%'><span style='font-family:宋体;mso-fareast-font-family:
宋体;font-size:117%;color:#EC0000'><b>(二)常用事件</b></span><span style='font-family:
宋体;mso-fareast-font-family:宋体;font-size:125%;display:none'><b> </b></span></div>
<div style='mso-line-spacing:"120 0 0";position:absolute;top:11.5%;left:9.36%;
width:88.2%;height:5.25%'><span style='position:absolute;top:0%;left:1.27%;
width:98.72%;height:100.0%'><span style='mso-special-format:bullet;position:
absolute;left:-1.29%'>•</span><b><span style='mso-spacerun:yes'> </span></b><span
lang=EN-US style='color:black;mso-fareast-language:ZH-CN'><b>Change </b></span><span
style='font-family:宋体;mso-fareast-font-family:宋体;color:black'><b>: </b></span></span></div>
<div style='mso-line-spacing:"120 0 0"'><span style='position:absolute;
top:18.0%;left:9.36%;width:102.43%;height:5.25%'><span style='color:black'><b><span
style='mso-spacerun:yes'> </span></b></span><span
style='font-family:宋体;mso-fareast-font-family:宋体;color:black'><b>当改变文本框的</b></span><span
lang=EN-US style='color:black;mso-fareast-language:ZH-CN'><b>Text</b></span><span
style='font-family:宋体;mso-fareast-font-family:宋体;color:black'><b>属性时会引发该事件。当用输入一</b></span></span><span
style='position:absolute;top:24.25%;left:9.36%;width:88.2%;height:5.25%'><span
style='font-family:宋体;mso-fareast-font-family:宋体;color:black'><b>个字符,就会触发一次</b></span><span
lang=EN-US style='color:black;mso-fareast-language:ZH-CN'><b>Change</b></span><span
lang=ZH-CN style='font-family:宋体;mso-fareast-font-family:宋体;color:black;
mso-fareast-language:ZH-CN'><b>事件。</b></span><span style='font-family:宋体;
mso-fareast-font-family:宋体;color:black;display:none'><b> </b></span></span></div>
<div style='mso-line-spacing:"120 0 0";position:absolute;top:30.75%;
left:9.36%;width:88.2%;height:5.25%'><span style='position:absolute;
top:0%;left:1.27%;width:98.72%;height:100.0%'><span style='mso-special-format:
bullet;position:absolute;left:-1.29%'>•</span><span style='color:black'><b><span
style='mso-spacerun:yes'> </span>KeyPress(KeyAscii As Integer)</b></span><span
style='font-family:宋体;mso-fareast-font-family:宋体;color:black'><b>:</b></span><span
style='color:black'><b> </b></span></span></div>
<div style='mso-line-spacing:"120 0 0"'><span style='position:absolute;
top:37.25%;left:9.36%;width:104.3%;height:5.25%'><span style='color:black'><b><span
style='mso-spacerun:yes'>
</span></b></span><span style='font-family:宋体;mso-fareast-font-family:宋体;
color:black'><b>当用户按下并释放键盘上一个</b></span><span lang=EN-US style='color:black;
mso-fareast-language:ZH-CN'><b>ANSI</b></span><span style='font-family:宋体;
mso-fareast-font-family:宋体;color:black'><b>键时,就会触发一</b></span></span><span
style='position:absolute;top:43.5%;left:9.36%;width:104.3%;height:5.25%'><span
style='font-family:宋体;mso-fareast-font-family:宋体;color:black'><b>次该事件,并返回一个</b></span><span
lang=EN-US style='color:black;mso-fareast-language:ZH-CN'><b>KeyAscii</b></span><span
style='font-family:宋体;mso-fareast-font-family:宋体;color:black'><b>参数(字符的</b></span><span
lang=EN-US style='color:black;mso-fareast-language:ZH-CN'><b>Ascii</b></span><span
lang=ZH-CN style='font-family:宋体;mso-fareast-font-family:宋体;color:black;
mso-fareast-language:ZH-CN'><b>值)到该</b></span></span><span style='position:
absolute;top:50.5%;left:9.36%;width:88.2%;height:4.75%'><span lang=ZH-CN
style='font-family:宋体;mso-fareast-font-family:宋体;color:black;mso-fareast-language:
ZH-CN'><b>事件过程中。</b></span><span style='font-family:宋体;mso-fareast-font-family:
宋体;color:black;display:none'><b> </b></span></span></div>
<div style='mso-line-spacing:"120 0 0"'><span style='position:absolute;
top:56.25%;left:9.36%;width:91.76%;height:5.25%'><span style='color:black'><b><span
style='mso-spacerun:yes'> </span></b></span><span
style='font-family:宋体;mso-fareast-font-family:宋体;color:black'><b>例如:输入</b></span><span
style='color:black'><b>“</b></span><span lang=EN-US style='color:black;
mso-fareast-language:ZH-CN'><b>A</b></span><span lang=EN-US style='color:black;
mso-fareast-language:ZH-CN'><b>”</b></span><span style='font-family:宋体;
mso-fareast-font-family:宋体;color:black'><b>,则</b></span><span lang=EN-US
style='color:black;mso-fareast-language:ZH-CN'><b>KeyAscii</b></span><span
style='font-family:宋体;mso-fareast-font-family:宋体;color:black'><b>的值是</b></span><span
lang=EN-US style='color:black;mso-fareast-language:ZH-CN'><b>65</b></span><span
style='font-family:宋体;mso-fareast-font-family:宋体;color:black'><b>。可用函数</b></span></span><span
style='position:absolute;top:62.74%;left:9.36%;width:88.2%;height:5.25%'><span
lang=EN-US style='color:black;mso-fareast-language:ZH-CN'><b>Chr$(KeyAscii) </b></span></span></div>
<div style='mso-line-spacing:"120 0 0";position:absolute;top:69.0%;left:9.36%;
width:88.2%;height:5.25%'><span style='font-family:宋体;mso-fareast-font-family:
宋体;color:black'><b>可得到字符</b></span><span style='color:black'><b>“</b></span><span
lang=EN-US style='color:black;mso-fareast-language:ZH-CN'><b>A</b></span><span
lang=EN-US style='color:black;mso-fareast-language:ZH-CN'><b>”</b></span><span
style='font-family:宋体;mso-fareast-font-family:宋体;color:black'><b>。 </b></span></div>
<div style='mso-line-spacing:"120 0 0";position:absolute;top:75.5%;left:9.36%;
width:88.2%;height:5.25%'><span style='position:absolute;top:0%;left:1.27%;
width:98.72%;height:100.0%'><span style='mso-special-format:bullet;position:
absolute;left:-1.29%'>•</span><span style='color:black'><b><span
style='mso-spacerun:yes'> </span>LostFocus </b></span><span
style='font-family:宋体;mso-fareast-font-family:宋体;color:black'><b>:</b></span><span
style='color:black'><b> </b></span><span style='font-family:宋体;mso-fareast-font-family:
宋体;color:black'><b>当控件失去焦点时发生。 </b></span></span></div>
<div style='mso-line-spacing:"120 0 0";position:absolute;top:81.75%;
left:9.36%;width:88.2%;height:5.25%'><span style='position:absolute;
top:0%;left:1.27%;width:98.72%;height:100.0%'><span style='mso-special-format:
bullet;position:absolute;left:-1.29%'>•</span><span style='color:black'><b><span
style='mso-spacerun:yes'> </span>GotFocus </b></span><span
style='font-family:宋体;mso-fareast-font-family:宋体;color:black'><b>:</b></span><span
style='color:black'><b> </b></span><span style='font-family:宋体;mso-fareast-font-family:
宋体;color:black'><b>当控件获得焦点时发生。</b></span></span></div>
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