方法1:
while(line = readline()){
let num = line;
console.log(parseInt(num, 16));
}
因为JavaScript语言本身就有数值转换的方法,此题可以直接用parseInt(string,radix)来指定基数,将第一个参数指定基数并转换为十进制整数。
方法2:
let template = {
"A" : 10,
"a" : 10,
"B" : 11,
"b" : 11,
"C" : 12,
"c" : 12,
"D" : 13,
"d" : 13,
"E" : 14,
"e" : 14,
"F" : 15,
"f" : 15
};
while(line = readline()){
let str = line.slice(2);
let rst = 0;
for(let i = str.length - 1; i >= 0; i --){
rst += (template[str[i]] || str[i]) * Math.pow(16, str.length - 1 - i);
}
console.log(rst);
}

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