标准C库对文件的操作

标准C库对文件的操作 fopen、fwrite、fread

#include <stdio.h>
#include <string.h>

int main()
{
        FILE *fp;
        char *str = "hello dzz";
        char readBuf[128] = {0};

        fp = fopen("./chen.txt", "w+");
        //size_t fwrite(const void *ptr, size_t size, size_t nmemb,FILE *stream);
        fwrite(str, sizeof(char), strlen(str), fp);
        //fwrite(str, sizeof(char)*strlen(str), 1, fp);

        //int fseek(FILE *stream, long offset, int whence);
        fseek(fp, 0, SEEK_SET);

//      size_t fread(void *ptr, size_t size, size_t nmemb, FILE *stream);
        fread(readBuf, sizeof(char), strlen(str), fp);
        //fread(readBuf, sizeof(char) * strlen(str), 1, fp);

        printf("read data :%s\n", readBuf);

        return 0;
}