SOURCE

console 命令行工具 X clear

                    
>
console
let array = [];
let $ = function(){
    return document.querySelector(...arguments);
};

for(let i = 0; i<=15; i++){
    let tmp = `.rad-${i}{border-radius: var(--x${i})!important}`;
    array.push(tmp);
}

$('#output').value = array.join('\n');
<textarea id='output'></textarea>
#output {position: relative;width: 100%;height: 60vh;}