📄 代码清单7-4.htm
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style='mso-spacerun:yes'> </span><</span>HEAD><o:p></o:p></span></p>
<p class=MsoNormal style='text-indent:18.0pt;background:#E6E6E6'><span
lang=EN-US style='font-size:9.0pt'>#003<span style='mso-spacerun:yes'>
</span><TITLE> AJAX</span><span style='font-size:9.0pt;font-family:宋体;
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"'>深入浅出</span><span
lang=EN-US style='font-size:9.0pt'>--</span><span style='font-size:9.0pt;
font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"'>代码</span><span lang=EN-US style='font-size:9.0pt'>7-3</TITLE><o:p></o:p></span></p>
<p class=MsoNormal style='text-indent:18.0pt;background:#E6E6E6'><span
lang=EN-US style='font-size:9.0pt'>#<span class=GramE>004<span
style='mso-spacerun:yes'> </span><</span>/HEAD><o:p></o:p></span></p>
<p class=MsoNormal style='text-indent:18.0pt;background:#E6E6E6'><span
lang=EN-US style='font-size:9.0pt'>#<span class=GramE>005<span
style='mso-spacerun:yes'> </span><</span>BODY><o:p></o:p></span></p>
<p class=MsoNormal style='text-indent:18.0pt;background:#E6E6E6'><span
lang=EN-US style='font-size:9.0pt'>#<span class=GramE>006<span
style='mso-spacerun:yes'> </span><</span>TABLE><o:p></o:p></span></p>
<p class=MsoNormal style='text-indent:18.0pt;background:#E6E6E6'><span
lang=EN-US style='font-size:9.0pt'>#<span class=GramE>007<span
style='mso-spacerun:yes'> </span><</span>FORM NAME="login"
METHOD="POST" ACTION="LOGIN.JSP" <span class=SpellE>onsubmit</span>="return
<span class=SpellE>login_submit</span>();"><o:p></o:p></span></p>
<p class=MsoNormal style='text-indent:18.0pt;background:#E6E6E6'><span
lang=EN-US style='font-size:9.0pt'>#<span class=GramE>008<span
style='mso-spacerun:yes'> </span><</span>TR><o:p></o:p></span></p>
<p class=MsoNormal style='text-indent:18.0pt;background:#E6E6E6'><span
lang=EN-US style='font-size:9.0pt'>#009<span style='mso-spacerun:yes'>
</span><span style='mso-tab-count:1'> </span><TD></span><span
style='font-size:9.0pt;font-family:宋体;mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman"'>用户名</span><span lang=EN-US
style='font-size:9.0pt'>:</TD><TD><INPUT TYPE="TEXT"
NAME="username"></TD><o:p></o:p></span></p>
<p class=MsoNormal style='text-indent:18.0pt;background:#E6E6E6'><span
lang=EN-US style='font-size:9.0pt'>#<span class=GramE>010<span
style='mso-spacerun:yes'> </span><</span>/TR><o:p></o:p></span></p>
<p class=MsoNormal style='text-indent:18.0pt;background:#E6E6E6'><span
lang=EN-US style='font-size:9.0pt'>#<span class=GramE>011<span
style='mso-spacerun:yes'> </span><</span>TR><o:p></o:p></span></p>
<p class=MsoNormal style='text-indent:18.0pt;background:#E6E6E6'><span
lang=EN-US style='font-size:9.0pt'>#012<span style='mso-spacerun:yes'>
</span><span style='mso-tab-count:1'> </span><TD></span><span
style='font-size:9.0pt;font-family:宋体;mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman"'>密码</span><span lang=EN-US
style='font-size:9.0pt'>:</TD><TD><INPUT
TYPE="PASSWORD" NAME="<span class=SpellE>passwd</span>"></TD><o:p></o:p></span></p>
<p class=MsoNormal style='text-indent:18.0pt;background:#E6E6E6'><span
lang=EN-US style='font-size:9.0pt'>#<span class=GramE>013<span
style='mso-spacerun:yes'> </span><</span>/TR><o:p></o:p></span></p>
<p class=MsoNormal style='text-indent:18.0pt;background:#E6E6E6'><span
lang=EN-US style='font-size:9.0pt'>#<span class=GramE>014<span
style='mso-spacerun:yes'> </span><</span>TR><o:p></o:p></span></p>
<p class=MsoNormal style='text-indent:18.0pt;background:#E6E6E6'><span
lang=EN-US style='font-size:9.0pt'>#015<span style='mso-spacerun:yes'>
</span><span style='mso-tab-count:1'> </span><TD>&<span
class=SpellE>nbsp</span>;</TD><TD><INPUT TYPE="SUBMIT"
VALUE="</span><span style='font-size:9.0pt;font-family:宋体;mso-ascii-font-family:
"Times New Roman";mso-hansi-font-family:"Times New Roman"'>登录</span><span
lang=EN-US style='font-size:9.0pt'>"></TD><o:p></o:p></span></p>
<p class=MsoNormal style='text-indent:18.0pt;background:#E6E6E6'><span
lang=EN-US style='font-size:9.0pt'>#<span class=GramE>016<span
style='mso-spacerun:yes'> </span><</span>/TR><o:p></o:p></span></p>
<p class=MsoNormal style='text-indent:18.0pt;background:#E6E6E6'><span
lang=EN-US style='font-size:9.0pt'>#<span class=GramE>017<span
style='mso-spacerun:yes'> </span><</span>/FORM><o:p></o:p></span></p>
<p class=MsoNormal style='text-indent:18.0pt;background:#E6E6E6'><span
lang=EN-US style='font-size:9.0pt'>#<span class=GramE>018<span
style='mso-spacerun:yes'> </span><</span>/TABLE><o:p></o:p></span></p>
<p class=MsoNormal style='text-indent:18.0pt;background:#E6E6E6'><span
lang=EN-US style='font-size:9.0pt'>#<span class=GramE>019<span
style='mso-spacerun:yes'> </span><</span>/BODY><o:p></o:p></span></p>
<p class=MsoNormal style='text-indent:18.0pt;background:#E6E6E6'><span
lang=EN-US style='font-size:9.0pt'>#<span class=GramE>020<span
style='mso-spacerun:yes'> </span><</span>/HTML><o:p></o:p></span></p>
<p class=MsoNormal style='text-indent:18.0pt;background:#E6E6E6'><span
lang=EN-US style='font-size:9.0pt'>#<span class=GramE>021<span
style='mso-spacerun:yes'> </span><</span>script
language="JavaScript"><o:p></o:p></span></p>
<p class=MsoNormal style='text-indent:18.0pt;background:#E6E6E6'><span
lang=EN-US style='font-size:9.0pt'>#<span class=GramE>022<span
style='mso-spacerun:yes'> </span>function</span> <span class=SpellE>login_submit</span>()
{<o:p></o:p></span></p>
<p class=MsoNormal style='text-indent:18.0pt;background:#E6E6E6'><span
lang=EN-US style='font-size:9.0pt'>#023<span
style='mso-spacerun:yes'>
</span>if (<span class=SpellE>document.login.username.value</span>==""<span
class=GramE>){</span><o:p></o:p></span></p>
<p class=MsoNormal style='text-indent:18.0pt;background:#E6E6E6'><span
lang=EN-US style='font-size:9.0pt'>#024<span style='mso-spacerun:yes'>
</span><span
style='mso-spacerun:yes'> </span>alert("</span><span
style='font-size:9.0pt;font-family:宋体;mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman"'>请输入用户名</span><span lang=EN-US
style='font-size:9.0pt'>!")<span style='mso-tab-count:4'> </span><span
class=SpellE>document.<span class=GramE>login.username.focus</span></span><span
class=GramE>()</span><o:p></o:p></span></p>
<p class=MsoNormal style='text-indent:18.0pt;background:#E6E6E6'><span
lang=EN-US style='font-size:9.0pt'>#025<span style='mso-spacerun:yes'>
</span><span style='mso-tab-count:4'> </span>return
false;<o:p></o:p></span></p>
<p class=MsoNormal style='text-indent:18.0pt;background:#E6E6E6'><span
lang=EN-US style='font-size:9.0pt'>#026<span
style='mso-spacerun:yes'>
</span>}<o:p></o:p></span></p>
<p class=MsoNormal style='text-indent:18.0pt;background:#E6E6E6'><span
lang=EN-US style='font-size:9.0pt'>#027<span
style='mso-spacerun:yes'>
</span>else if (<span class=SpellE>document.login.passwd.value</span>==
""<span class=GramE>){</span><o:p></o:p></span></p>
<p class=MsoNormal style='text-indent:18.0pt;background:#E6E6E6'><span
lang=EN-US style='font-size:9.0pt'>#028<span style='mso-spacerun:yes'>
</span><span
style='mso-spacerun:yes'> </span>alert("</span><span
style='font-size:9.0pt;font-family:宋体;mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman"'>请输入密码</span><span lang=EN-US
style='font-size:9.0pt'>!");<o:p></o:p></span></p>
<p class=MsoNormal style='text-indent:18.0pt;background:#E6E6E6'><span
lang=EN-US style='font-size:9.0pt'>#029<span
style='mso-spacerun:yes'>
</span><span class=SpellE><span class=GramE>document.login.passwd.focus</span></span><span
class=GramE>(</span>);<o:p></o:p></span></p>
<p class=MsoNormal style='text-indent:18.0pt;background:#E6E6E6'><span
lang=EN-US style='font-size:9.0pt'>#030<span style='mso-spacerun:yes'>
</span><span style='mso-tab-count:4'> </span>return
false;<o:p></o:p></span></p>
<p class=MsoNormal style='text-indent:18.0pt;background:#E6E6E6'><span
lang=EN-US style='font-size:9.0pt'>#031<span
style='mso-spacerun:yes'>
</span><span class=GramE>}else</span><span style='mso-spacerun:yes'>
</span>{<o:p></o:p></span></p>
<p class=MsoNormal style='text-indent:18.0pt;background:#E6E6E6'><span
lang=EN-US style='font-size:9.0pt'>#032<span style='mso-spacerun:yes'>
</span><span style='mso-tab-count:4'> </span><span
class=SpellE><span class=GramE>document.login.submit</span></span><span
class=GramE>(</span>);<o:p></o:p></span></p>
<p class=MsoNormal style='text-indent:18.0pt;background:#E6E6E6'><span
lang=EN-US style='font-size:9.0pt'>#033<span style='mso-spacerun:yes'>
</span><span style='mso-tab-count:4'> </span>return
true;<o:p></o:p></span></p>
<p class=MsoNormal style='text-indent:18.0pt;background:#E6E6E6'><span
lang=EN-US style='font-size:9.0pt'>#034<span style='mso-spacerun:yes'>
</span><span style='mso-tab-count:2'> </span>}<o:p></o:p></span></p>
<p class=MsoNormal style='text-indent:18.0pt;background:#E6E6E6'><span
lang=EN-US style='font-size:9.0pt'>#<span class=GramE>035<span
style='mso-spacerun:yes'> </span>}</span>;<o:p></o:p></span></p>
<p class=MsoNormal style='text-indent:18.0pt;background:#E6E6E6'><span
lang=EN-US style='font-size:9.0pt'>#<span class=GramE>036<span
style='mso-spacerun:yes'> </span><</span>/script><o:p></o:p></span></p>
<p class=MsoNormal style='text-indent:21.0pt'><span lang=EN-US><o:p> </o:p></span></p>
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