颜色拾色器 红 绿 蓝 灰 用鼠标单击下面的颜色块,将弹出颜色值 for(i=0;i<=15;++i){ document.write(''+ishex(i*17) +'') document.all['Ltd' + i].num=i } function ishex(which){ return which.toString(16); } script> document.write('') for(i=0;i<=15;++i){ document.write(''+ishex(i*17)+''); } document.write('') for(i=0;i<=15;++i){ document.write('') document.write(''+ishex(i*17)+'') for(j=0;j<=15;++j){ document.write(''); } document.write('') } script> function selectmenu(which){ switch(which){ case '1' :leftR();break; case '2' :leftG();break; case '3' :leftB();break; case '4' :leftA();break; } } function leftR(){ for(i=0;i<=15;++i){ document.all['Ltd'+i].bgColor='rgb('+(i*17)+',0,0)'; } rightR(0) } function leftG(){ for(i=0;i<=15;++i){ document.all['Ltd'+i].bgColor='rgb(0,'+ (i*17) + ',0)'; } rightG(0) } function leftB(){ for(i=0;i<=15;++i){ document.all['Ltd'+i].bgColor='rgb(0,0,'+(i*17)+')'; } rightB(0) } function leftA(){ for(i=0;i<=15;++i){ document.all['Ltd'+i].bgColor='rgb('+(i*17)+','+(i*17)+','+(i*17)+')'; } rightA() } function rightR(which){ for(i=0;i<=15;++i){ for(j=0;j<=15;++j){ document.all['Rtd'+i+'and'+j].bgColor='rgb('+(which*17)+','+(i*17)+','+(j*17)+')'; } } } function rightG(which){ for(i=0;i<=15;++i){ for(j=0;j<=15;++j){ document.all['Rtd'+i+'and'+j].bgColor='rgb('+(i*17)+','+(which*17)+','+(j*17)+')'; } } } function rightB(which){ for(i=0;i<=15;++i){ for(j=0;j<=15;++j){ document.all['Rtd'+ i+'and'+j].bgColor='rgb('+(i*17)+','+(j*17)+','+(which*17)+')'; } } } function rightA(){ for(i=0;i<=15;++i){ for(j=0;j<=15;++j){ document.all['Rtd'+i+'and'+j].bgColor='rgb('+(i*16+j)+','+(i*16+j)+','+(i*16+j)+')'; } } } function clickright(which){ alert(which.bgColor) } function changeright(which){ switch(select1.value){ case '1' :rightR(which);break; case '2' :rightG(which);break; case '3' :rightB(which);break; } } script> [Ctrl+A 全选 注:如需引入外部Js需刷新才能执行]