用鼠标选定背景颜色-爱易网

用鼠标选定背景颜色

日期：2014-5-18 浏览次数:21393次

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以下是程序代码

要完成此效果把如下代码加入到<body>区域中

<!--

var hex = new Array(6)

hex[0] = "FF"

hex[1] = "CC"

hex[2] = "99"

hex[3] = "66"

hex[4] = "33"

hex[5] = "00"

// accept triplet string and display as background color

function display(triplet) {

// set color as background color

document.bgColor = '#' + triplet

// display the color hexadecimal triplet

alert('现在的背景色是 #'+triplet)

}

// draw a single table cell based on all descriptors

function drawCell(red, green, blue) {

// open cell with specified hexadecimal triplet background color

document.write('<TD BGCOLOR="#' + red + green + blue + '">')

// open a hypertext link with javascript: scheme to call display function

document.write('<A HREF="javascript:display(\'' + (red + green + blue) + '\')">')

// print transparent image (use any height and width)

document.write('<IMG SRC="place.gif" BORDER=0 HEIGHT=12 WIDTH=12>')

// close link tag

document.write('</A>')

// close table cell

document.write('</TD>')

}

// draw table row based on red and blue descriptors

function drawRow(red, blue) {

// open table row

document.write('<TR>')

// loop through all non-dithered color descripters as green hex

for (var i = 0; i < 6; ++i) {

drawCell(red, hex[i], blue)

}

// close current table row

document.write('</TR>')

}

// draw table for one of six color cube panels

function drawTable(blue) {

// open table (one of six cube panels)

document.write('<TABLE CELLPADDING=0 CELLSPACING=0 BORDER=0>')

// loop through all non-dithered color descripters as red hex

for (var i = 0; i < 6; ++i) {

drawRow(hex[i], blue)

}

// close current table

document.write('</TABLE>')

}

// draw all cube panels inside table cells

function drawCube() {

// open table

document.write('<TABLE CELLPADDING=5 CELLSPACING=0 BORDER=1><TR>')

// loop through all non-dithered color descripters as blue hex

for (var i = 0; i < 6; ++i) {

// open table cell with white background color

document.write('<TD BGCOLOR="#FFFFFF">')

// call function to create cube panel with hex[i] blue hex

drawTable(hex[i])

// close current table cell

document.write('</TD>')

}

// close table row and table

document.write('</TR></TABLE>')

}

// call function to begin execution

drawCube()

// -->

</script>

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用鼠标选定背景颜色

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