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背景调色板

稿源：互联网 2022-08-07 06:20:51 点击： 86 撤稿纠错

背景调色板，提供多种背景颜色给用户自己选择。

以下讨论的是和背景特效相关的背景调色板教程文章，内容是本站精心挑选整理的教程，希望对广大的网友给到帮助,下面是详细内容：

脚本代码(For Alixixi.com)如下:

有什么问题请到<a href='/bbs/index.asp?boardid=2'>论坛</a>中发表<br>



<script language="JavaScript">
<!--

// Copyright (c) 1996-1997 Tomer Shiran. All rights reserved.
// Permission given to use the script provided that this notice remains as is.
// Additional scripts can be found at http://www.geocities.com/~yehuda/

// create 6-element array
var hex = new Array(6)

// assign non-dithered descriptors
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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