将字符串中的字符替换成指定字符c

发表于:2021-03-03

void replace_char(char *result, char *source, char s1, char s2){ int i = 0; char *q = NULL; q = source; for(i=0; i<strlen(q); i++) { if(q[i] == s1) { q[i] = s2; } } strcpy(result, q);}void replace_string(char *result, char *source, char* s1, char *s2){ char *q=NULL; char *p=NULL; p=source; while((q=strstr(p, s1))!=NULL) { strncpy(result, p, q-p); result[q-p]= 'void replace_char(char *result, char *source, char s1, char s2){ int i = 0; char *q = NULL; q = source; for(i=0; i<strlen(q); i++) { if(q[i] == s1) { q[i] = s2; } } strcpy(result, q);}void replace_string(char *result, char *source, char* s1, char *s2){ char *q=NULL; char *p=NULL; p=source; while((q=strstr(p, s1))!=NULL) { strncpy(result, p, q-p); result[q-p]= '\0';//very important, must attention! strcat(result, s2); strcat(result, q+strlen(s1)); strcpy(p,result); } strcpy(result, p); }void main(){ char url[64] = "ad12 fdf5 d12f dfd12 dfp"; char result[64] = {0}; replace_char(result, url, ' ', '_' );//把url里所有‘ ’字符替换成'_'字符，结果存在result中 printf("char final result=%s\n",result); memset(result, 0, sizeof(result)); replace_string(result, url, "12", "@@@");//把url里所有“12”字符串替换成“@@@”字符串 printf("string final result=%s\n", result);
';//very important, must attention! strcat(result, s2); strcat(result, q+strlen(s1)); strcpy(p,result); } strcpy(result, p); }void main(){ char url[64] = "ad12 fdf5 d12f dfd12 dfp"; char result[64] = {0}; replace_char(result, url, ' ', '_' );//把url里所有‘ ’字符替换成'_'字符，结果存在result中 printf("char final result=%s\n",result); memset(result, 0, sizeof(result)); replace_string(result, url, "12", "@@@");//把url里所有“12”字符串替换成“@@@”字符串 printf("string final result=%s\n", result);void replace_char(char *result, char *source, char

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