接口功能:C实现读取TXT文件,并将数字和字母单独提出来。
程序:
#include <stdio.h>
int j=0,k=0;
void read_TXT(const char *path,char *string,char *num)
{
char file;
FILE* fpRead = fopen(path, "r");
if (fpRead == NULL)
{
printf("打开文件失败!\n");
return;
}
while(fscanf(fpRead, "%c ", &file)==1)
{
if (file <= '9' && '0' <= file)
{
num[j] = file;
j++;
}
if ((file <= 'Z' && 'A'<=file) || (file <= 'z' && 'a'<=file))
{
string[k] = file;
k++;
}
}
fclose(fpRead);
}
int main()
{
//读数据,将读到的数据存到数组a[]中
char string[100];
char num[100];
char *path="/Users/hangshao/Desktop/read/demo.txt";
read_TXT(path,string,num);
for(int i=0;i<j;i++)
{
printf("%c",num[i]);
}
printf("\n\n");
for(int i=0;i<k;i++)
{
printf("%c",string[i]);
}
return 1;
}
接口功能:C实现读取TXT文件,统计指定单字符的数量。
程序:
#include <stdio.h>
//读取TXT文本,统计指定单字符出现次数
int Coun_Num(const char *path,const char s)
{
int count=0;
char file;
FILE *fp=fopen(path,"r");
if(fp==NULL)
{
printf("no \n");
return 0;
}
while(fscanf(fp,"%c",&file)==1)
{
if(file == s)
{
count++;
}
}
fclose(fp);
return count;
}
int main() {
printf("%d \n",Coun_Num("/Users/hangshao/Desktop/untitled1/demo.txt",'s'));
return 0;
}