C程序设计(第四版)第七章习题

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  1. 正反字符串
#include <stdio.h>
#include <string.h>
#define max 100
int main(){
	char a[max],b[max];
	int i=0,len;
	printf("请输入字符串a:");
	gets(a);
	len = strlen(a);
	len = len-1;
	while(len>=0) {
		b[i] = a[len];
		i++;
		len--;
	}
	puts(a);
	puts(b);
	return 0;
}
  1. 进制转换
  2. 计算天数

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转载自blog.csdn.net/nanhuaibeian/article/details/87861307