生成js九九乘法表代码

for (let i = 1; i <= 9; i++) {
let line = "";
for (let j = 1; j <= i; j++) {
line += `${j} * ${i} = ${i * j} `;
}
console.log(line);
}

相关问题

javascript九九乘法表代码

以下是JavaScript实现九九乘法表的代码：

for (var i = 1; i <= 9; i++) {
  var row = "";
  for (var j = 1; j <= i; j++) {
    row += i + " * " + j + " = " + i * j + "  ";
  }
  console.log(row);
}

运行结果：

1 * 1 = 1  
2 * 1 = 2  2 * 2 = 4  
3 * 1 = 3  3 * 2 = 6  3 * 3 = 9  
4 * 1 = 4  4 * 2 = 8  4 * 3 = 12  4 * 4 = 16  
5 * 1 = 5  5 * 2 = 10  5 * 3 = 15  5 * 4 = 20  5 * 5 = 25  
6 * 1 = 6  6 * 2 = 12  6 * 3 = 18  6 * 4 = 24  6 * 5 = 30  6 * 6 = 36  
7 * 1 = 7  7 * 2 = 14  7 * 3 = 21  7 * 4 = 28  7 * 5 = 35  7 * 6 = 42  7 * 7 = 49  
8 * 1 = 8  8 * 2 = 16  8 * 3 = 24  8 * 4 = 32  8 * 5 = 40  8 * 6 = 48  8 * 7 = 56  8 * 8 = 64  
9 * 1 = 9  9 * 2 = 18  9 * 3 = 27  9 * 4 = 36  9 * 5 = 45  9 * 6 = 54  9 * 7 = 63  9 * 8 = 72  9 * 9 = 81  

上面的代码中，使用两个for循环嵌套，第一个循环控制行数，第二个循环控制列数，通过字符串拼接的方式生成每一行的内容，最后通过console.log输出到控制台。

js生成九九乘法表的代码

以下是用 JavaScript 生成九九乘法表的代码：

for (let i = 1; i <= 9; i++) {
  let row = '';
  for (let j = 1; j <= i; j++) {
    row += `${j} x ${i} = ${i * j}\t`;
  }
  console.log(row);
}

输出结果：

1 x 1 = 1
1 x 2 = 2    2 x 2 = 4
1 x 3 = 3    2 x 3 = 6    3 x 3 = 9
1 x 4 = 4    2 x 4 = 8    3 x 4 = 12   4 x 4 = 16
1 x 5 = 5    2 x 5 = 10   3 x 5 = 15   4 x 5 = 20   5 x 5 = 25
1 x 6 = 6    2 x 6 = 12   3 x 6 = 18   4 x 6 = 24   5 x 6 = 30   6 x 6 = 36
1 x 7 = 7    2 x 7 = 14   3 x 7 = 21   4 x 7 = 28   5 x 7 = 35   6 x 7 = 42   7 x 7 = 49
1 x 8 = 8    2 x 8 = 16   3 x 8 = 24   4 x 8 = 32   5 x 8 = 40   6 x 8 = 48   7 x 8 = 56   8 x 8 = 64
1 x 9 = 9    2 x 9 = 18   3 x 9 = 27   4 x 9 = 36   5 x 9 = 45   6 x 9 = 54   7 x 9 = 63   8 x 9 = 72   9 x 9 = 81