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分享这个背景图片为什么不能显示？
一个test.html和几个需要的*.jpg图片放在同一目录下。
在<script language="Javascript">
<!--
//-->
</script>
中的一个函数中，
前面有几个判断后，将filename=*.jpg;
然后有一句：
document.writeln("<TABLE BORDER=0
STYLE='background-image:url(''+filename+'')'>");
应该将背景显示为filename选中的图片，可是怎么搞也没有。
难道我的这句不对吗？？
我还试过几种类似的写法，也都不行：
如：
document.writeln("<TABLE BORDER=0
STYLE='background-image:url(filename)'>");
等等。
在<script language="Javascript">
<!--
//-->
</script>
中的一个函数中，
前面有几个判断后，将filename=*.jpg;
然后有一句：
document.writeln("<TABLE BORDER=0
STYLE='background-image:url(''+filename+'')'>");
应该将背景显示为filename选中的图片，可是怎么搞也没有。
难道我的这句不对吗？？
我还试过几种类似的写法，也都不行：
如：
document.writeln("<TABLE BORDER=0
STYLE='background-image:url(filename)'>");
等等。
...全文
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saucer 2002-09-15
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document.writeln("<TABLE BORDER=0 STYLE='background-image:url(''+filename+'')'>");
will display
<TABLE BORDER=0 STYLE='background-image:url(''+filename+'')'>
document.writeln("<TABLE BORDER=0 STYLE='background-image:url(" + filename + ")'>");
will display
<TABLE BORDER=0 STYLE='background-image:url(su1.jpg)'>
will display
<TABLE BORDER=0 STYLE='background-image:url(''+filename+'')'>
document.writeln("<TABLE BORDER=0 STYLE='background-image:url(" + filename + ")'>");
will display
<TABLE BORDER=0 STYLE='background-image:url(su1.jpg)'>
saucer 2002-09-15
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把
document.writeln("<TABLE BORDER=0 STYLE='background-image:url(''+filename+'')'>");
改为
document.writeln("<TABLE BORDER=0 STYLE='background-image:url(" + filename + ")'>");
document.writeln("<TABLE BORDER=0 STYLE='background-image:url(''+filename+'')'>");
改为
document.writeln("<TABLE BORDER=0 STYLE='background-image:url(" + filename + ")'>");
zhdleo 2002-09-15
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to saucer(思归)
好像对了，这又是为何？
我还以为''，两个单引是表示前后要加一个空呢！
为什么是一个双引？？
按照源里，最外面是一对“”；里面的不就都要是单引了吗？
还有就是你看源码，下面还有几个地方也时有''的，那些地方要不要改，又为什么？？
好像对了，这又是为何？
我还以为''，两个单引是表示前后要加一个空呢！
为什么是一个双引？？
按照源里，最外面是一对“”；里面的不就都要是单引了吗？
还有就是你看源码，下面还有几个地方也时有''的，那些地方要不要改，又为什么？？
saucer 2002-09-15
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try
document.writeln("<TABLE BORDER=0 STYLE='background-image:url(" + filename + ")'>");
document.writeln("<TABLE BORDER=0 STYLE='background-image:url(" + filename + ")'>");
zhdleo 2002-09-15
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源码如下：
<html>
<head>
<title>日历</title>
</head>
<script language="Javascript">
<!--
var currentdate, currentday, currentyear, currentmonth, xday;
function dayinfo()
{ var today = new Date();
currentdate=today.getDate();
currentday=today.getDay();
currentmonth=today.getMonth();
currentyear=today.getYear();
var tempday= currentdate%7;
xday=(currentday + 7 - tempday) % 7 + 1;
}
function displaycalender()
{ var alldays=new Array(31,28,31,30,31,30,31,31,30,31,30,31);
var weekdayname=new Array("Sun","Mon","Tue","Wed","Thu","Fri","Sat");
var monthname=new Array("January","February","March","April","May","June",
"July","August","September","October","November","December");
var filename;
dayinfo();
if (currentyear%4==0) allday[1]++;
if (currentmonth<=2&¤tmonth>=11) {filename="w1.jpg";}
else if (currentmonth<=5&¤tmonth>=2) {filename="sp1.jpg";}
else if (currentmonth<=8&¤tmonth>=5) {filename="su1.jpg";}
else if (currentmonth<=11&¤tmonth>=8){filename="f1.jpg";}
document.writeln("<TABLE BORDER=0 STYLE='background-image:url(''+filename+'')'>");
document.writeln("<TR>");
document.writeln("<CAPTION STYLE='font-family:''+''comic sansms''+'';color:blue'>");
document.writeln(currentyear+' '+monthname[currentmonth]);
document.writeln("</CAPTION>");
document.writeln("<TR>");
for (i=0;i<7;i++)
document.writeln("<TH STYLE='color:red'>"+weekdayname[i]+"</TH>");
document.writeln("</TR>");
for (i=1;i<=alldays[currentmonth]+xday;i++)
{ if (i%7==1) document.writeln("<TR>");
if (i<=xday) {document.writeln("<TD></TD>");}
else if (i==currentdate+xday)
{document.writeln("<TD STYLE='color:lime'>"+(i-xday)+"</TD>");}
else {document.writeln("<TD>"+(i-xday)+"</TD>");}
if (i%7==0) document.writeln("</TR>");
}
document.writeln("</TR>");
document.writeln("</TABLE>");
}
//-->
</script>
<body>
<blockquote>
<script language="Javascript">
<!--
displaycalender();
//-->
</script>
</blockquote>
</body>
</html>
<html>
<head>
<title>日历</title>
</head>
<script language="Javascript">
<!--
var currentdate, currentday, currentyear, currentmonth, xday;
function dayinfo()
{ var today = new Date();
currentdate=today.getDate();
currentday=today.getDay();
currentmonth=today.getMonth();
currentyear=today.getYear();
var tempday= currentdate%7;
xday=(currentday + 7 - tempday) % 7 + 1;
}
function displaycalender()
{ var alldays=new Array(31,28,31,30,31,30,31,31,30,31,30,31);
var weekdayname=new Array("Sun","Mon","Tue","Wed","Thu","Fri","Sat");
var monthname=new Array("January","February","March","April","May","June",
"July","August","September","October","November","December");
var filename;
dayinfo();
if (currentyear%4==0) allday[1]++;
if (currentmonth<=2&¤tmonth>=11) {filename="w1.jpg";}
else if (currentmonth<=5&¤tmonth>=2) {filename="sp1.jpg";}
else if (currentmonth<=8&¤tmonth>=5) {filename="su1.jpg";}
else if (currentmonth<=11&¤tmonth>=8){filename="f1.jpg";}
document.writeln("<TABLE BORDER=0 STYLE='background-image:url(''+filename+'')'>");
document.writeln("<TR>");
document.writeln("<CAPTION STYLE='font-family:''+''comic sansms''+'';color:blue'>");
document.writeln(currentyear+' '+monthname[currentmonth]);
document.writeln("</CAPTION>");
document.writeln("<TR>");
for (i=0;i<7;i++)
document.writeln("<TH STYLE='color:red'>"+weekdayname[i]+"</TH>");
document.writeln("</TR>");
for (i=1;i<=alldays[currentmonth]+xday;i++)
{ if (i%7==1) document.writeln("<TR>");
if (i<=xday) {document.writeln("<TD></TD>");}
else if (i==currentdate+xday)
{document.writeln("<TD STYLE='color:lime'>"+(i-xday)+"</TD>");}
else {document.writeln("<TD>"+(i-xday)+"</TD>");}
if (i%7==0) document.writeln("</TR>");
}
document.writeln("</TR>");
document.writeln("</TABLE>");
}
//-->
</script>
<body>
<blockquote>
<script language="Javascript">
<!--
displaycalender();
//-->
</script>
</blockquote>
</body>
</html>
