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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>ASCII width map</title>
</head>
<body>
<script>
const ctx = document.createElement('canvas').getContext('2d');
ctx.font = '12px sans-serif';
const asciiRange = [32, 126];
let mapStr = '';
for (let i = asciiRange[0]; i <= asciiRange[1]; i++) {
const char = String.fromCharCode(i);
const width = ctx.measureText(char).width;
const ratio = Math.round(width / 12 * 100);
console.log(ratio + 20);
mapStr += String.fromCharCode(ratio + 20);
}
const a = mapStr.replace(/\\/g, '\\\\');
document.write(a);
</script>
</body>
</html>
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