python对字符串的操作

s.strip().lstrip().rstrip(‘,‘)

#strcpy(sStr1,sStr2)
sStr1 = ‘strcpy‘
sStr2 = sStr1
sStr1 = ‘strcpy2‘
print sStr2

#strcat(sStr1,sStr2)
sStr1 = ‘strcat‘
sStr2 = ‘append‘
sStr1 += sStr2
print sStr1

#strchr(sStr1,sStr2)
# < 0 为未找到
sStr1 = ‘strchr‘
sStr2 = ‘s‘
nPos = sStr1.index(sStr2)
print nPos

#strcmp(sStr1,sStr2)
sStr1 = ‘strchr‘
sStr2 = ‘strch‘
print cmp(sStr1,sStr2)

#strspn(sStr1,sStr2)
sStr1 = ‘12345678‘
sStr2 = ‘456‘
#sStr1 and chars both in sStr1 and sStr2
print len(sStr1 and sStr2)

#strlen(sStr1)
sStr1 = ‘strlen‘
print len(sStr1)

#strlwr(sStr1)
sStr1 = ‘JCstrlwr‘
sStr1 = sStr1.upper()
#sStr1 = sStr1.lower()
print sStr1

#strncat(sStr1,sStr2,n)
sStr1 = ‘12345‘
sStr2 = ‘abcdef‘
n = 3
sStr1 += sStr2[0:n]
print sStr1

#strncmp(sStr1,sStr2,n)
sStr1 = ‘12345‘
sStr2 = ‘123bc‘
n = 3
print cmp(sStr1[0:n],sStr2[0:n])

#strncpy(sStr1,sStr2,n)
sStr1 = ‘‘
sStr2 = ‘12345‘
n = 3
sStr1 = sStr2[0:n]
print sStr1

#strnset(sStr1,ch,n)
sStr1 = ‘12345‘
ch = ‘r‘
n = 3
sStr1 = n * ch + sStr1[3:]
print sStr1

#strpbrk(sStr1,sStr2)
sStr1 = ‘cekjgdklab‘
sStr2 = ‘gka‘
nPos = -1
for c in sStr1:
    if c in sStr2:
        nPos = sStr1.index(c)
        break
print nPos

#strrev(sStr1)
sStr1 = ‘abcdefg‘
sStr1 = sStr1[::-1]
print sStr1

#strstr(sStr1,sStr2)
sStr1 = ‘abcdefg‘
sStr2 = ‘cde‘
print sStr1.find(sStr2)

#strtok(sStr1,sStr2)
sStr1 = ‘ab,cde,fgh,ijk‘
sStr2 = ‘,‘
sStr1 = sStr1[sStr1.find(sStr2) + 1:]
print sStr1
#或者
s = ‘ab,cde,fgh,ijk‘
print(s.split(‘,‘))

delimiter = ‘,‘
mylist = [‘Brazil‘, ‘Russia‘, ‘India‘, ‘China‘]
print delimiter.join(mylist)

def addslashes(s):
    d = {‘"‘:‘\\"‘, "‘":"\\‘", "\0":"\\\0", "\\":"\\\\"}
    return ‘‘.join(d.get(c, c) for c in s)
 
s = "John ‘Johny‘ Doe (a.k.a. \"Super Joe\")\\\0"
print s
print addslashes(s)

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"))