打印九九乘法表

1x1=1    
1x2=2    2x2=4    
1x3=3    2x3=6    3x3=9    
1x4=4    2x4=8    3x4=12    4x4=16    
1x5=5    2x5=10    3x5=15    4x5=20    5x5=25    
1x6=6    2x6=12    3x6=18    4x6=24    5x6=30    6x6=36    
1x7=7    2x7=14    3x7=21    4x7=28    5x7=35    6x7=42    7x7=49    
1x8=8    2x8=16    3x8=24    4x8=32    5x8=40    6x8=48    7x8=56    8x8=64    
1x9=9    2x9=18    3x9=27    4x9=36    5x9=45    6x9=54    7x9=63    8x9=72    9x9=81

Java

package org.java.base.algorithm;

/**
 * @ClassName NinetyNine
 * @Description TODO
 * @Author liuhaihua
 * @Date 2021/7/9 14:53
 * @Version 1.0
 */
public class NinetyNine {
  public static void main(String[] args){
    for(int i=1;i<=9;i++){
      for(int j=1;j<=i;j++){
        System.out.printf("%dX%d=%d ",i,j,i*j);
      }
      System.out.print("\n");
    }
  }
}

python

# -*- coding: UTF-8 -*-


for i in range(1,10):
    for j in range(1,i+1):
        print('{}x{}={}\t'.format(j, i, i*j),end="")
    print("")