shell_99乘法表_三角形_梯形

Love The Way You Lie 2021-07-26 16:05 563阅读 0赞

### 例题 ###

*  一.99乘法表
 *   *  二. \* 输出一条横线
     *   *  三. \* 输出直角三角形
         *   *  四. \* 输出矩形
             *  五. \* 输出直角三角形
             *   *   *  六. \*输出等腰三角形
                     *  倒等腰三角形：
                     *  七.菱形
                     *  八.平行四边形
                     *  九.梯形
                     *  直角梯形：
                     *  等腰梯形：

# 一.99乘法表 #

#!/bin/bash
    for ((a=1; a<=9; a++))
    
    do
    
    for ((b=1; b<=$a; b++))
    
    do
    
    c=$[ $a * $b ]
    
    echo -n -e "$a*$b=$c\t" 
    done
    echo ""
    done

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L1dzeHlp_size_16_color_FFFFFF_t_70_pic_center]

## 二. \* 输出一条横线 ##

#!/bin/bash
    for ((a=1; a<=10; a++))
    do
    echo -n "*"
    done
    echo ""

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L1dzeHlp_size_16_color_FFFFFF_t_70_pic_center 1]

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### 三. \* 输出直角三角形 ###

#!/bin/bash
    for ((a=1; a<=10; a++))
    do
    for ((b=1; b<=$a; b++))
    do
    echo -n "*"
    done
    echo " "
    done

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L1dzeHlp_size_16_color_FFFFFF_t_70_pic_center 3]

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L1dzeHlp_size_16_color_FFFFFF_t_70_pic_center 4]

#### 四. \* 输出矩形 ####

#!/bin/bash
    for ((a=1; a<=10; a++))   ##外循环是宽
    do
    for ((b=1; b<=12; b++))   ###内循环是长
    do
    echo -n "*"
    done
    echo ""
    done

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L1dzeHlp_size_16_color_FFFFFF_t_70_pic_center 5]

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L1dzeHlp_size_16_color_FFFFFF_t_70_pic_center 6]

#### 五. \* 输出直角三角形 ####

#!/bin/bash
    for ((a=1; a<=10; a++))
    do
    for ((b=1; b<=$a; b++))
    do
    echo -n "*"
    done
    echo ""
    done

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L1dzeHlp_size_16_color_FFFFFF_t_70_pic_center 7]

#!/bin/bash
    for ((a=10; a>=1; a--))
    do
    for ((b=1; b<=$a; b++))
    do
    echo -n "*"
    done
    echo " "
    done

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L1dzeHlp_size_16_color_FFFFFF_t_70_pic_center 8]

#!/bin/bash
    for ((a=1; a<=10; a++))
    do
    for ((b=10; b>=$a; b--))
    do
    echo -n " "
    done
    for ((c=1; c<=$a; c++))
    do
    echo -n "*"
    done
    echo " "
    done

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L1dzeHlp_size_16_color_FFFFFF_t_70_pic_center 9]

###### 六. \*输出等腰三角形 ######

#!/bin/bash
    for ((a=1; a<=10; a++))
    do
    for ((b=10; b>=$a; b--))
    do
    echo -n " "
    done
    for ((c=1; c<=$a; c++))
    do
    echo -n "*"
    done
    for ((d=2; d<=$a; d++))
    do
    echo -n "*"
    done
    echo " "
    
    done

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L1dzeHlp_size_16_color_FFFFFF_t_70_pic_center 10]

###### 倒等腰三角形： ######

#!/bin/bash
    for ((a=1; a<=10; a++))
    do
    for ((b=1; b<=$a; b++))
    do
    echo -n " "             #####先做个输出空格的直角三角形
    done
    
    for ((c=10; c>=$a; c--))     #####做个倒的三角形
    
    do
    echo -n "*"
    done
    
    for ((d=9; d>=$a; d--))   #####再做一个倒的三角形
    do
    echo -n "*"
    done
    
    
    echo " "
    done

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L1dzeHlp_size_16_color_FFFFFF_t_70_pic_center 11]

###### 七.菱形 ######

#!/bin/bash
    for ((a=1; a<=9; a++))
    do
    for ((b=10; b>=$a; b--))
    do
    echo -n " "
    done
    for ((c=1; c<=$a; c++))
    do
    echo -n "*"
    done
    for ((d=2; d<=$a; d++))
    do
    echo -n "*"
    done
    echo " "
    done
    
    
    for ((a=1; a<=10; a++))
    do
    for ((b=1; b<=$a; b++))
    do
    echo -n " "
    done
    
    for ((c=10; c>=$a; c--))
    do
    echo -n "*"
    done
    for ((d=9; d>=$a; d--))
    do
    echo -n "*"
    done
    echo " "
    done

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L1dzeHlp_size_16_color_FFFFFF_t_70_pic_center 12]  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L1dzeHlp_size_16_color_FFFFFF_t_70_pic_center 13]

###### 八.平行四边形 ######

#!/bin/bash
    for ((a=1; a<=10; a++))
    do
    
    for ((c=1; c<=$a; c++))
    do
    echo -n " "
    done
    
    
    for ((b=1; b<=12; b++))
    do
    echo -n "*"
    done
    echo " "
    done

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L1dzeHlp_size_16_color_FFFFFF_t_70_pic_center 14]

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L1dzeHlp_size_16_color_FFFFFF_t_70_pic_center 15]

#!/bin/bash
    for ((a=1; a<=10; a++))
    do
    
    for ((c=10; c>=$a; c--))
    do
    echo -n " "
    done
    
    
    for ((b=1; b<=12; b++))
    do
    echo -n "*"
    done
    echo " "
    done

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L1dzeHlp_size_16_color_FFFFFF_t_70_pic_center 16]

###### 九.梯形 ######

###### 直角梯形： ######

#!/bin/bash
    for ((a=1; a<=10; a++))
    do
    
    for ((c=10; c>=$a; c--))
    do
    echo -n " "
    done
    
    
    for ((b=1; b<=12; b++))
    do
    echo -n "*"
    done
    
    for ((e=1; e<=$a; e++))
    do
    echo -n "*"
    done
    
    
    
    echo " "
    done

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L1dzeHlp_size_16_color_FFFFFF_t_70_pic_center 17]

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###### 等腰梯形： ######

#!/bin/bash
    for ((a=1; a<=10; a++))
    do
    
    for ((c=10; c>=$a; c--))
    do
    echo -n " "
    done
    
    
    for ((b=1; b<=12+$a; b++))
    do
    echo -n "*"
    done
    
    for ((e=1; e<=$a; e++))
    do
    echo -n "*"
    done
    
    
    
    echo " "
    done

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