Various operations of strings in Python

S.strip (). Lstrip (). Rstrip (', ') go to spaces and special symbols
Copy string
Python

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#strcpy (SSTR1,SSTR2) SSTR1 = ' strcpy ' SSTR2 = SStr1 SSTR1 = ' Strcpy2 ' Print SSTR2

Connection string

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Python #strcat (SSTR1,SSTR2) SSTR1 = ' strcat ' SSTR2 = ' Append ' SSTR1 + + SSTR2 Print SSTR1

Find characters

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< 0 not Found Python #strchr (SSTR1,SSTR2) SSTR1 = ' STRCHR ' SSTR2 = ' s ' NPOs = Sstr1.index (SSTR2) Print NPOs

Comparing strings

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Python #strcmp (SSTR1,SSTR2) SSTR1 = ' STRCHR ' SSTR2 = ' Strch ' Print CMP (SSTR1,SSTR2)

Whether the scanned string contains the specified characters

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Python #strspn (SSTR1,SSTR2) SSTR1 = ' 12345678 ' SSTR2 = ' 456 ' #sStr1 and chars both in SSTR1 and SSTR2 Print Len (SSTR1 and SSTR2)

String length

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Python #strlen (SSTR1) SSTR1 = ' strlen ' Print Len (SSTR1)

Converts capitalization in a string

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Python #strlwr (SSTR1) SSTR1 = ' jcstrlwr ' SSTR1 = Sstr1.upper () #sStr1 = Sstr1.lower () Print SSTR1

Append a string of the specified length

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Python #strncat (Sstr1,sstr2,n) SSTR1 = ' 12345 ' SSTR2 = ' abcdef ' n = 3 SSTR1 + + sstr2[0:n] Print SSTR1

String specifying length Comparisons

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Python #strncmp (Sstr1,sstr2,n) SSTR1 = ' 12345 ' SSTR2 = ' 123BC ' n = 3 Print CMP (Sstr1[0:n],sstr2[0:n])

Copy characters of a specified length

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Python #strncpy (Sstr1,sstr2,n) SSTR1 = ' ' SSTR2 = ' 12345 ' n = 3 SSTR1 = Sstr2[0:n] Print SSTR1

Replaces the first n characters of a string with a specified character

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Python #strnset (Sstr1,ch,n) SSTR1 = ' 12345 ' ch = ' R ' n = 3 SSTR1 = n * ch + sstr1[3:] Print SSTR1

Scan string

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Python #strpbrk (SSTR1,SSTR2) SSTR1 = ' Cekjgdklab ' SSTR2 = ' Gka ' NPOs =-1 For C in SSTR1: If C in SSTR2: NPOs = Sstr1.index (c) Break Print NPOs

Flip a string

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Python #strrev (SSTR1) SSTR1 = ' ABCDEFG ' SSTR1 = Sstr1[::-1] Print SSTR1

Find string

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Python #strstr (SSTR1,SSTR2) SSTR1 = ' ABCDEFG ' SSTR2 = ' CDE ' Print Sstr1.find (SSTR2)

Split string

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Python #strtok (SSTR1,SSTR2) SSTR1 = ' Ab,cde,fgh,ijk ' SSTR2 = ', ' SSTR1 = Sstr1[sstr1.find (SSTR2) + 1:] Print SSTR1

Or

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s = ' Ab,cde,fgh,ijk ' Print (S.split (', '))

Connection string

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Python delimiter = ', ' MyList = [' Brazil ', ' Russia ', ' India ', ' ', '] Print Delimiter.join (mylist) Implementation of Addslashes in PHP Python def addslashes (s): D = {' ': ', ' ', ' ' ': ' \ ', ' ': ' \ ', ' \ ': ' \ ' Return ". Join (D.get (c, c) for C in s) s = "John ' Johny ' Doe" (a.k.a. "Super Joe") \ " Print S Print Addslashes (s)

Show only letters and numbers

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Python def onlycharnum (s,oth= '): S2 = S.lower (); Fomart = ' abcdefghijklmnopqrstuvwxyz0123456789 ' For C in S2: If not C in Fomart: s = S.replace (c, '); return s; Print (Onlystr ("a000 aa-b"))