#include 
     
      #include 
      
       //功能： 合并2个源文件的内容，到一个新的文件中int main(int a,char *argv[]){	if(a!=4){		printf("请输入3个文件路径：%s\n", argv[0]);		exit(1);	}	FILE *fp1,*fp2,*fp3;	fp1 = fopen(argv[1],"r");	if(fp1==NULL){	     printf("source file1 open error");	     exit(1);	}		fp2 = fopen(argv[2],"r");	if(fp1==NULL){	     printf("source file2 open error");	     exit(1);	}			fp3 = fopen(argv[3],"w");	if(fp1==NULL){	     printf("target file3 open error");	     exit(1);	}		//然后开始复制	char content[100] = {'\0'};	int i=0;	int ch;	while((ch=fgetc(fp1))!=EOF){		putchar(ch);		//过滤空格；回车 tab		if(ch=='\n'||ch==' '||ch=='\t'||ch=='\r') continue;		content[i++] = ch;	}	fclose(fp1);	while((ch=fgetc(fp2))!=EOF){		putchar(ch);		//过滤空格；回车 tab		if(ch=='\n'||ch==' '||ch=='\t'||ch=='\r') continue;		content[i++] = ch;	}	fclose(fp2);	//开始复制	int n = i;	for(i=0;i