删除字符串空格

#include <stdio.h> #include <ctype.h> #include <conio.h> #include <stdlib.h> void fun (char str) { int i=0; char p=str; while(p) { if(p!=' ') /删除空格/ { str[i]=p; i++; } p++; } str[i]='\0'; /加上结束符/ } void main() { char str[81]; char Msg[]="Input a string:"; int n; FILE out; printf(Msg); gets(str); puts(str); fun(str); printf(" str: %s\n",str); /***************************/ out=fopen("out.dat","w"); fun(Msg); fprintf(out,"%s",Msg); fclose(out); /******************************/ }