Python基礎練習——forサイクル(九九乗算表、図案)

Forサイクル
for ... inサイクル

for変数inシーケンス:

for変数1,変数2.in多層シーケンス:

for..Inループはelse文を使用できます.

In [1]:

#       
list1 = ['aaa','  ','  ','  ']
for i in list1 :
    print(i)

aaa
  
  
  

In [7]:

list1 = ['aaa','  ','  ','  ']
for name in list1 :
    print(name,end = '')
    if name == '  ' :
        print('      ')
    elif name == '  ':
        print('      ')
    else :
        print('      ')
else :
    print('       ')
        
        

aaa      
        
        
        
       

range紹介

は、デジタルシーケンス

を生成する.

具体的な範囲は

を設定することができる.

注意、pythonでは、一般に数字の範囲を表す2つの数である場合、一般に左の数字を含む右の数字を含まない

が含まれる.

randintは特例で、彼の左右は

を含んでいます.

range関数はpython 2とpython 3で深刻な違いがある

In [10]:

for i in range(1,5) :
    print(i)

1
2
3
4

ループのbreak,contineu,pass

break:無条件にサイクル全体を終了し、略称サイクル急死

continue:無条件に今回のサイクルを終了し、新たに次のサイクルに入る

pass:省略を表し、通常はステーション

に用いられる.
In [12]:

# break   
for i in range(0,10) :
    print(i)
    if i == 4 :
        break
    

0
1
2
3
4

In [18]:

# continue   
for i in range(0,10) :

    if i % 2 ==1 :
        continue
    else :
        print('{0}     '.format(i))

0     
2     
4     
6     
8     

In [20]:

#pass   
for i in range(0,10) :
    pass
    print('*',end = '')

**********

九九乗算表
In [26]:

#     
for i in range(1,10) :
    for j in range(1,i+1) :
        print('%dX%d=%-2d '%(j,i,i * j),end = ' ')
    print()

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  

印刷パターン
In [27]:

#  for    
for i in range(0,4) :
    print('* ' * 5)

* * * * * 
* * * * * 
* * * * * 
* * * * * 

In [70]:

#  for    
for i in range(0,4) :
    for j in range(0,5) :
        print('* ',end = '')
    print()

* * * * * 
* * * * * 
* * * * * 
* * * * * 

In [40]:

#  for    
for i in range(0,4) :
    for j in range(0,5) :
        if (i == 1 and j ==1) or (i == 1 and j ==2)  or (i == 1 and j ==3) or (i == 2 and j ==1) or (i == 2 and j ==2)  or (i == 2 and j ==3) :
            print('  ',end='')
        else :
            print('* ',end = '')
    print()

* * * * * 
*       * 
*       * 
* * * * * 

In [56]:

#  for    
#        ：
for i in range(0,4) :
    for j in range(0,5) :
        if i ==1 or i == 2 :
                if j==1 or j == 2 or j ==3 :
                    print('  ',end='')
                else :
                    print('* ',end = '')
        else :
                    print('* ',end = '')
    print()
#            

* * * * * 
*       * 
*       * 
* * * * * 

In [63]:

#  for    
#        ：
for i in range(0,4) :
    for j in range(0,5) :
        if i ==0 or i == 3 or j==0 or j == 4:
            print('* ',end='')
        else :
                print('  ',end = '')
    print()
#          “*”

* * * * * 
*       * 
*       * 
* * * * * 

In [42]:

#        
for i in range(1,6):
    for j in range(6-i,6) :
        print('* ',end = '')
    print()
print()

#     
for i in range(1,6):
    for j in range(6-i,6) :
        if i == 1 or i == 5 or j == 5 or j == 6 - i :
            print('* ',end = '')
        else :
            print(end = '  ')
    print()
print()

print('* '*20)
print()
#######################################################

for i in range(1,6):
    for j in range(i,6) :
        print('* ',end = '')
    print()
print()

#     
for i in range(1,6):
    for j in range(i,6) :
        if i == 1 or i == 5 or j == i or j == 5:
            print('* ',end = '')
        else :
            print(end = '  ')
    print()
print()

print('* '*20)
print()
#######################################################
for i in range(1,6):
    for j in range(1,6) :
        if (i ==2 and j ==1) or (i ==3 and j ==1) or (i ==3 and j ==2) or (i ==4 and j ==1) or (i ==4 and j ==2) or (i ==4 and j ==3) or (i ==5 and j ==1) or (i ==5 and j ==2) or (i ==5 and j ==3) or (i ==5 and j ==4) :
            print('  ',end = '')
        else :
            print('* ',end = '')  
    print()
print()
#        ：
for i in range(1,6):
    for j in range(1,i) :
        print(end = '  ')
    for k in range(i,6) :
        print('* ',end = '')
        
    print()
print()
for i in range(1,6):
    for j in range(1,i) :
        print(end = '  ')
    for k in range(i,6) :
        if i == 1 or i == 5 or k == i or k == 5 :
            print('* ',end = '')
        else :
            print(end = '  ')
    print()
print()

print('* '*20)
print()
#######################################################

for i in range(1,6):
    for j in range(i+1,6) :
        print(end = '  ')
    for k in range(1,i+1) :
        print('* ',end = '')
        
    print()
print()
for i in range(1,6):
    for j in range(i+1,6) :
        print(end = '  ')
    for k in range(1,i+1) :
        if i == 1 or i == 5 or k == 1 or k == i :
            print('* ',end = '')
        else :
            print(end = '  ')
        
    print()
print()

print('* '*20)
print()
#######################################################

* 
* * 
* * * 
* * * * 
* * * * * 

* 
* * 
*   * 
*     * 
* * * * * 

* * * * * * * * * * * * * * * * * * * * 

* * * * * 
* * * * 
* * * 
* * 
* 

* * * * * 
*     * 
*   * 
* * 
* 

* * * * * * * * * * * * * * * * * * * * 

* * * * * 
  * * * * 
    * * * 
      * * 
        * 

* * * * * 
  * * * * 
    * * * 
      * * 
        * 

* * * * * 
  *     * 
    *   * 
      * * 
        * 

* * * * * * * * * * * * * * * * * * * * 

        * 
      * * 
    * * * 
  * * * * 
* * * * * 

        * 
      * * 
    *   * 
  *     * 
* * * * * 

* * * * * * * * * * * * * * * * * * * * 

文字の印刷
In [67]:

#       
for i in range(5):
    for j in range(0,5 - i) :
        print(end = ' ')
    for k in range(5 - i,6) :
        print('* ',end = '')    
    print()
print()
print('* '*20)
print()
#         
for i in range(5):
    for j in range(0,5 - i) :
        print(end = ' ')
    for k in range(5 - i,6) :
        if i == 0 or i == 4 or k == 5 - i or k == 5 :
            print('* ',end = '')   
        else :
            print(end = '  ')
    print()
print()

     * 
    * * 
   * * * 
  * * * * 
 * * * * * 

* * * * * * * * * * * * * * * * * * * * 

     * 
    * * 
   *   * 
  *     * 
 * * * * * 

In [69]:

#     A
for i in range(5):
    for j in range(0,5 - i) :
        print(end = ' ')
    for k in range(5 - i,6) :
        if i == 0 or i == 2 or k == 5 - i or k == 5 :
            print('* ',end = '')   
        else :
            print(end = '  ')
    print()

     * 
    * * 
   * * * 
  *     * 
 *       * 

In [21]:

#     B
for i in range(0,7) :
    for j in range(0,3) :
        if j == 0 :
            print('* ',end = '')
        elif i == 0 or i == 3 or i == 6:
            if j == 2 :
                print('  ',end = '')
            else :
                print('* ',end = '')
        elif i == 1 or i == 2 or i == 4 or i == 5 :
            if j == 1:
                print('  ',end = '')
            else :
                print('* ',end = '')
                
    print()

* *   
*   * 
*   * 
* *   
*   * 
*   * 
* *   

In [1]:

#     D
for i in range(0,4) :
    for j in range(0,3) :
        if j == 0 :
            print('* ',end = '')
        elif i == 0 or i == 3 :
            if j == 2 :
                print('  ',end = '')
            else :
                print('* ',end = '')
        elif i == 1 or i == 2  :
            if j == 1 :
                print('  ',end = '')
            else :
                print('* ',end = '')
    print()

* *   
*   * 
*   * 
* *