Python字符串操作
#Python字符串操作
''
'1.复制字符串'
''
#strcpy(
sStr1,
sStr2)
sStr1 =
'strcpy'
sStr2 =
sStr1
sStr1 =
'strcpy2'
print
sStr2
''
'2.连接字符串'
''
#strcat(
sStr1,
sStr2)
sStr1 =
'strcat'
sStr2 =
'append'
sStr1 +
=
sStr2
print
sStr1
''
'3.查找字符'
''
#strchr(
sStr1,
sStr2)
sStr1 =
'strchr'
sStr2 =
'r'
nPos =
sStr1.
index(
sStr2)
print
nPos
''
'4.比较字符串'
''
#strcmp(
sStr1,
sStr2)
sStr1 =
'strchr'
sStr2 =
'strch'
print
cmp(
sStr1,
sStr2)
''
'5.扫描字符串是否包含指定的字符'
''
#strspn(
sStr1,
sStr2)
sStr1 =
'12345678'
sStr2 =
'456'
#sStr1 and
chars both in
sStr1 and
sStr2
print
len(
sStr1 and
sStr2)
''
'6.字符串长度'
''
#strlen(
sStr1)
sStr1 =
'strlen'
print
len(
sStr1)
''
'7.将字符串中的小写字符转换为大写字符'
''
#strlwr(
sStr1)
sStr1 =
'JCstrlwr'
sStr1 =
sStr1.
upper(
)
print
sStr1
''
'8.追加指定长度的字符串'
''
#strncat(
sStr1,
sStr2,
n)
sStr1 =
'12345'
sStr2 =
'abcdef'
n =
3
sStr1 +
=
sStr2[
0:
n]
print
sStr1
''
'9.字符串指定长度比较'
''
#strncmp(
sStr1,
sStr2,
n)
sStr1 =
'12345'
sStr2 =
'123bc'
n =
3
print
cmp(
sStr1[
0:
n]
,
sStr2[
0:
n]
)
''
'10.复制指定长度的字符'
''
#strncpy(
sStr1,
sStr2,
n)
sStr1 =
''
sStr2 =
'12345'
n =
3
sStr1 =
sStr2[
0:
n]
print
sStr1
''
'11.字符串比较，不区分大小写'
''
#stricmp(
sStr1,
sStr2)
sStr1 =
'abcefg'
sStr2 =
'ABCEFG'
print
cmp(
sStr1.
upper(
)
,
sStr2.
upper(
)
)
''
'12.将字符串前n个字符替换为指定的字符'
''
#strnset(
sStr1,
ch,
n)
sStr1 =
'12345'
ch =
'r'
n =
3
sStr1 =
n *
ch +
sStr1[
3:
]
print
sStr1
''
'13.扫描字符串'
''
#strpbrk(
sStr1,
sStr2)
sStr1 =
'cekjgdklab'
sStr2 =
'gka'
nPos =
-
1
for
c in
sStr1:
if
c in
sStr2:
nPos =
sStr1.
index(
c)
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