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【b站咸虾米】2 Vue基础(上) 2021最新Vue从基础到实例高级_vue2_vuecli脚手架博客案例

alanwhy 03-12 19:30 阅读 2

在acwing上刷了一些语法题巩固下js

输入输出

1. A + B

首先读取时讲所有输入读到缓存buf

然后读完后先把a和b用lamda表达转成int,就可以输出了

let buf = '';

process.stdin.on('readable', function() {
    let chunk = process.stdin.read();
    if (chunk) buf += chunk.toString();
});

process.stdin.on('end', function() {
    let [a,b] = buf.split(" ").map(x => {return parseInt(x);});
    console.log(a+b);
});

608. 差

多行数据的输入split参数是\n,格式化输出用``

let buf = '';

process.stdin.on('readable', function() {
    let chunk = process.stdin.read();
    if (chunk) buf += chunk.toString();
});

process.stdin.on('end', function() {
    let [a,b,c,d] = buf.split("\n").map(x => {return parseInt(x);});
    console.log(`DIFERENCA = ${a*b-c*d}`);
});

判断语句

665. 倍数

===既判断值,也判断类型

let buf = '';

process.stdin.on('readable', function() {
    let chunk = process.stdin.read();
    if (chunk) buf += chunk.toString();
});

process.stdin.on('end', function() {
    let [a,b] = buf.split(" ").map(x => {return parseInt(x);});
    if (a % b === 0 || b % a === 0) console.log("Sao Multiplos");
    else console.log("Nao sao Multiplos");
});

循环语句

708. 偶数

for (let i = 2; i <= 100; i+=2) console.log(i);

数组

 737. 数组替换 

用了split后返回值就是数组,直接用数组接

let buf = '';

process.stdin.on('readable', function() {
    let chunk = process.stdin.read();
    if (chunk) buf += chunk.toString();
});

process.stdin.on('end', function() {
    let X = buf.split("\n").map(X => {return parseInt(X);});
    for (let i = 0; i < 10; i++) {
        if (X[i] <= 0) X[i] = 1;
        console.log(`X[${i}] = ${X[i]}`);
    }
});

字符串

760. 字符串长度

直接用内置的字符串类型

let buf = '';

process.stdin.on('readable', function() {
    let chunk = process.stdin.read();
    if (chunk) buf += chunk.toString();
});

process.stdin.on('end', function() {
    let X = buf.split("\n")[0];
    console.log(X.length);
});

函数

805. x和y的最大值

let buf = '';

process.stdin.on('readable', function() {
    let chunk = process.stdin.read();
    if (chunk) buf += chunk.toString();
});
let max = (x,y) => {return x > y? x : y;} 
process.stdin.on('end', function() {
    let [a,b] = buf.split(" ").map(x => {return parseInt(x);});
    console.log(max(a,b));
});
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