24 lines
483 B
C
24 lines
483 B
C
#include <stdio.h>
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#include <string.h>
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int main(){
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//定义文件指针
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FILE *fp, *out;
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int i;
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char str[100], out_str[1024];
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fp = fopen("input.txt", "r");//r只读 w覆写 a增加
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out = fopen("out.txt", "w");
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//EOF是文件结束的标记 #define EOF -1
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//fscanf(文件指针, 读取格式, 变量地址) 读到末尾会返回-1
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//fgets(字符串, 最大长度, 文件指针) 读到末尾会返回0
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while(fgets(str, 100, fp)){
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strcat(out_str, str);
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}
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for(i=0;i<100;i++){
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fprintf(out, "%s\n", out_str);
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}
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return 0;
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}
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