文字列関数の例

#1. L Strip
#2. R Strip
#3. Replace a string in a statement with another string

# L Strip
Str = input("Enter the String:")

ord_space = ord(' ')
ord_tab = ord('\t')

i = 0 
right = 0
while i < len(Str):
    if ord(Str[i]) != ord_space and ord(Str[i]) != ord_tab:
        right = i
        break
    i+=1
Str = Str[right:]
print('LStrip String:',Str,end='#',sep='')


# R Strip

Str = input("Enter the String:")

ord_space = ord(' ')
ord_tab = ord('\t')

i = len(Str)-1
right = 0 

while i > 0:
    if ord(Str[i]) != ord_space and ord(Str[i]) != ord_tab:
        right = i
        break
    else:
        i-=1

Str = Str[:right+1]

print("#", Str, "#", sep='')


# Replace a string

#MSD --> Dhoni
#MSD is Former Indian Captain.  MSD is retired. MSD plays for CSK
sen = 'MSD is Former Indian Captain.  MSD is retired. MSD plays for CSK - MSD'
Key = 'MSD'
New_sen = ''
Key_Len = len(Key)
i=0
while i< len(sen):
       if Key == sen[i:i+Key_Len]:
            print('i',i)
            New_sen = New_sen + 'Dhoni'
            i+=Key_Len
       else:
            New_sen = New_sen + sen[i]
            i+=1
print(New_sen)       

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