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C£º
char st[100];
1. ×Ö·û´®³¤¶È
strlen(st);
2. ×Ö·û´®±È½Ï
strcmp(st1,st2);
strncmp(st1,st2,n); °Ñst1,st2µÄǰn¸ö½øÐбȽϡ£
3. ¸½¼Ó
strcat(st1,st2);
strncat(st1,st2,n); n±íʾÁ¬½ÓÉÏst2µÄǰn¸ö¸øst1£¬ÔÚ×îºó²»Òª¼Ó'\0'¡£
4. Ìæ»»
strcpy(st1,st2);
strncpy(st1,st2,n); n±íʾ¸´ÖÆst2µÄǰn¸ö¸øst1£¬ÔÚ×îºóÒª¼Ó'\0'¡£
5. ²éÕÒ
where = strchr(st,ch) chΪҪÕÒµÄ×Ö·û¡£
where = strspn(st1,st2); ²éÕÒ×Ö·û´®¡£
C++£º
<string>
string str;
1. ×Ö·û´®³¤¶È
len = str.length();
len = str.size();
2. ×Ö·û´®±È½Ï
¿ÉÒÔÖ±½Ó±È½Ï
Ò²¿ÉÒÔ:
str1.compare(str2);
str1.compare(pos1,len1,str2,pos2,len2); ֵΪ¸º£¬0 £¬Õý¡£
nops ³¤¶Èµ½Íê¡£
3. ¸½¼Ó
str1 += str2;
»ò
str1.append(str2);
str1.append(str2.pos2,len2);
4. ×Ö·û´®ÌáÈ¡
str2 = str1.substr();
str2 = str1.substr(pos1);
str2 = str1.substr(pos1,len1);
5. ×Ö·û´®ËÑË÷
where = str1.find(str2);
where = str1.find(str2,pos1); pos1ÊÇ´Óstr1µÄµÚ¼¸Î»¿ªÊ¼¡£
where = str1.rfind(str2); ´ÓºóÍùǰËÑ¡£
6. ²åÈë×Ö·û´®
²»ÊǸ³ÖµÓï¾ä¡£
str1.insert(pos1,str2);
str1.insert(pos1,str2,pos2,len2);
str1.insert(pos1,numchar,char); numcharÊDzåÈë´ÎÊý£¬charÊÇÒª²åÈëµÄ×Ö·û¡£
7. Ìæ»»×Ö·û´®
str1.replace(pos1,str2);
str1.replace(pos1,str2,pos2,len2);
8. ɾ³ý×Ö·û´®
str.erase(pos,len)
str.clear();
9. ½»»»×Ö·û´®
swap(str1,str2);
10. C --> C++
char *cstr = "Hello";
string str1;
cstr = cstr;
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