c语言保存txt文件

❶ c璇瑷闂棰 濡备綍浠巘xt鏂囨湰鍒ゆ柇璇诲彇瀛楃︿覆鏄钖︽槸鏁板瓧瀛楃︿覆锛屾彁鍙栨暟瀛楀瓧绗︿覆骞朵缭瀛树负txt鏂囦欢

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

#definemcr__file_name_max_length256/*鏂囦欢钖嶆渶澶х殑闀垮害*/

intmain(intargc,char*argv)
{
charchr1_source_file_name[mcr__file_name_max_length+1];/*婧愭枃浠璺寰勫拰鏂囦欢钖*/
charchr1_new_file_name[mcr__file_name_max_length+1];/*淇濆瓨鏁板瓧镄勬柊鏂囦欢钖*/
charchr_read;/*涓存椂璇诲彇鍑烘潵镄勫瓧绗*/
/*鎹㈣屾爣璁帮纴濡傛灉鍊间负1琛ㄧず鏂版枃浠跺唴瀹归渶瑕佹崲琛岋纴涓0琛ㄧず涓嶉渶瑕佹崲琛*/
unsignedcharuchr_next_line=0;
unsignedcharuchr_number=0;/*濡傛灉鏁板瓧涓娆￠兘娌″嚭鐜拌繃鍒欎负0锛屽惁鍒欎负1*/
FILE*p_file_source;/*鎸囧悜婧愭枃浠剁殑鏂囦欢鎸囬拡*/
FILE*p_file_new;/*鎸囧悜鏂版枃浠剁殑鏂囦欢鎸囬拡*/

/*銮峰彇鐩镙囨枃浠跺拰鏂版枃浠剁殑钖岖О銆傚傛灉鏂囦欢鍜岀▼搴忓湪钖屼竴涓鏂囦欢澶涓嬶纴
鍒欎笉闇瑕佽緭鍏ュ畬鏁磋矾寰*/
printf("璇疯緭鍏ョ洰镙囨枃浠跺畬鏁寸殑璺寰勫强鏂囦欢钖嶏细");
scanf("%s",chr1_source_file_name);
printf("璇疯緭鍏ユ柊鏂囦欢镄勫畬鏁磋矾寰勫强鏂囦欢钖嶏细");
scanf("%s",chr1_new_file_name);

p_file_source=fopen(chr1_source_file_name,"r");
if(p_file_source)/*濡傛灉鎴愬姛镓揿紑鏂囦欢*/
{
/*鍒涘缓涓涓鏂版枃浠剁敤浜庝缭瀛樻暟瀛瀛楃︿覆*/
p_file_new=fopen(chr1_new_file_name,"w");
if(p_file_new==NULL)/*濡傛灉鏂版枃浠跺垱寤哄け璐*/
{
fclose(p_file_source);/*鍏抽棴鍏埚墠镓揿紑镄勬簮鏂囦欢*/
exit(0);/*阃鍑虹▼搴*/
}
/*璇诲彇婧愭枃浠朵腑镄勫唴瀹*/
while(!feof(p_file_source))
{
chr_read=fgetc(p_file_source);
if('0'<=chr_read&&chr_read<='9')/*濡傛灉璇诲彇鍒扮殑瀛楃︽槸鏁板瓧*/
{
uchr_number=1;/*镙囨槑锛屾暟瀛楀嚭鐜拌繃*/
if(uchr_next_line)/*濡傛灉鎹㈣屾爣璁颁负鐪*/
{
fputc('
',p_file_new);/*鎹㈣*/
uchr_next_line=0;/*灏嗘崲琛屾爣璁伴吨缃涓0*/
}
fputc(chr_read,p_file_new);/*灏呜诲彇鍒扮殑鏁板瓧瀛楃︿缭瀛桦埌鏂版枃浠*/
}
else/*濡傛灉璇诲彇鍒扮殑瀛楃︿笉鏄鏁板瓧瀛楃*/
{/*灏嗘崲琛屾爣璁拌剧疆涓1锛岄偅涔堜笅涓娆″啓鏂囦欢镞讹纴灏嗕细鎹㈣*/
if(uchr_number)
{
uchr_next_line=1;
}
}
}
fclose(p_file_source);
fclose(p_file_new);
}
return1;
}

杩愯岀粨鏋滃傚浘镓绀猴细

❷ C语言逐行读取txt中的数据，并保存到数组中

#include<stdio.h>
intmain(void){
FILE*fin=fopen("file.txt","r");/*假设文件名为file.txt*/
inta[100],i;
for(i=0;i<100;i++){
fscanf(fin,"%d",&a[i]);
}
fclose(fin);
/*此时已经读取完毕，可以进行接下来的处理了*/
return0;
}