JavaScript实现把rgb颜色转换成16进制颜色的方法

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>javascript RGB转16进制</title> </head> <body> <script> function toHexString(r,g,b) { return ("00000" + (r << 16 | g << 8 | b).toString(16)).slice(-6); } /* 或者: function RGB2HEX(a,b,c){return"#"+((256+a<<8|b)<<8|c).toString(16).slice(1)} */ var hex = toHexString(100, 100, 100); alert(hex); </script> </body> </html>

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