5-1.c

日文版畅销书籍10天学会C语言的源程序。适合入门者学习使用。希望对大家有帮助。

#include <stdio.h>
#include <stdlib.h>

main () {

	FILE *fp;		//僼傽僀儖億僀儞僞
	char c;			//撉傒崬傫偩暥帤傪奿擺偡傞
	char str[8]; 	//撉傒崬傫偩暥帤楍傪奿擺偡傞

	//僼傽僀儖傪侾暥帤偢偮撉傒崬傓

	if((fp = fopen("test.txt", "r")) == NULL) {
		//僼傽僀儖偑僆乕僾儞偱偒側偐偭偨応崌偺張棟
		printf("僼傽僀儖僆乕僾儞僄儔乕\n");
		exit(1); //嫮惂廔椆偡傞
	}

	while((c = fgetc(fp)) != EOF){
		printf("%c", c);
	}

	fclose(fp);

	//僼傽僀儖傪傑偲傔偰撉傒崬傓

	if((fp = fopen("test.txt", "r")) == NULL) {
		printf("僼傽僀儖僆乕僾儞僄儔乕\n");
		exit(1); 
	}

	while(fgets(str, 7, fp)){
		printf("%s", str);
	}

	fclose(fp);
	return 0;
}