[JS]Transform from string to ASCII

2021-9-9 萧 写技术 

<head>
<title>String to ASCII</title>

</head>


Input String:
<textarea id="in"></textarea>

Output ASCII:
<textarea id="out"></textarea>

<input type="button" value="Transfor" onclick="transf();" />


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<a href="http://log.anycle.com">author:Anycle</a>

<style>
textarea{width:100%; margin:20px 0; }
input{width:200px; padding:5px; margin:auto;}
</style>

<script>

var hex = function(x){
	switch(x){
		case 10:
			y = 'A';
			break;
		case 11:
			y = 'B';
			break;
		case 12:
			y = 'C';
			break;
		case 13:
			y = 'D';
			break;
		case 14:
			y = 'E';
			break;
		case 15:
			y = 'F';
			break;	
		default:
			y = x.toString();
	}	
	return y;
}

var dec2hex = function(x){
	return hex( Math.floor(x/16) ) + hex(x%16);
}

var transf = function(){
	sin = document.getElementById("in").value;
	sout = "";
	console.log(sin.length);
	for(i=0; i<sin.length; i++){
		sout += dec2hex(sin[i].charCodeAt(0)) + " " ;
	}
	console.log(sout);
	document.getElementById("out").value = sout;
}
</script>

标签: JS

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