用C语言编写程序,从键盘输入一串字符,判断输入字符串是否是回文? C语言编写一个程序,判断输入的一个字符串是否是回文。

\u7528C++\u7f16\u5199\u7a0b\u5e8f\uff0c\u4ece\u952e\u76d8\u8f93\u5165\u4e00\u4e32\u5b57\u7b26\uff0c\u5224\u65ad\u8f93\u5165\u5b57\u7b26\u4e32\u662f\u5426\u662f\u56de\u6587\uff1f\u5982\u679c

#include
using namespace std;
int main()
{char s[100];
int i,j;
cout<<"\u8bf7\u8f93\u5165\u5b57\u7b26\u4e32s:"<<endl;
cin>>s;
for(i=0;s[i];i++);
for(i--,j=0;j<i&&s[i]==s[j];i++,j--);
if(i<j)cout<<"\u4e0d\u662f\u56de\u6587\u4e32"<<endl;
else cout<<"\u662f\u56de\u6587\u4e32"<<endl;
return 0;
}

\u6e90\u4ee3\u7801\u5982\u4e0b\uff1a
#include
int main()
{
int n, reversedInteger = 0, remainder, originalInteger;
printf("\u8f93\u5165\u4e00\u4e2a\u6574\u6570: ");
scanf("%d", &n);
originalInteger = n;
// \u7ffb\u8f6c
while( n!=0 )
{
remainder = n%10;
reversedInteger = reversedInteger*10 + remainder;
n /= 10;
}
// \u5224\u65ad
if (originalInteger == reversedInteger)
printf("%d \u662f\u56de\u6587\u6570\u3002", originalInteger);
else
printf("%d \u4e0d\u662f\u56de\u6587\u6570\u3002", originalInteger);
return 0;
}

\u6269\u5c55\u8d44\u6599
1\u3001\u51fd\u6570\u7684\u8fd4\u56de\u503c\u662f\u901a\u8fc7\u51fd\u6570\u4e2d\u7684return\u8bed\u53e5\u83b7\u53d6\u7684\u3002
2\u3001\u51fd\u6570\u503c\u7684\u7c7b\u578b\u3002
3\u3001\u5982\u679c\u51fd\u6570\u503c\u7684\u7c7b\u578b\u548creturn\u8bed\u53e5\u4e2d\u8868\u8fbe\u5f0f\u7684\u503c\u4e0d\u4e00\u6837\uff0c\u5219\u4ee5\u51fd\u6570\u7c7b\u578b\u4e3a\u51c6\u3002
4\u3001\u5982\u679c\u8c03\u7528\u51fd\u6570\u4e2d\u6ca1\u6709return\u8bed\u53e5\uff0c\u5e76\u4e0d\u5e26\u56de\u4e00\u4e2a\u786e\u5b9a\u7684\u7528\u6237\u9700\u8981\u7684\u503c\uff0c\u51fd\u6570\u4e0d\u662f\u4e0d\u5e26\u56de\u503c\uff0c\u800c\u53ea\u662f\u4e0d\u5e26\u56de\u6709\u7528\u7684\u503c\uff0c\u5e26\u56de\u4e00\u4e2a\u4e0d\u786e\u5b9a\u7684\u503c\u3002

#include<stdio.h>
int symmetry()
{
char ch1,ch2;
scanf("%c",&ch1);
if(ch1=='-')//递归结束条件。
return 1;
else
if(symmetry())//自己调用自己。
{
scanf("%c",&ch2);
if(ch1==ch2)
return 1;
else
return 0;
}
return 0;
}
void main()
{
printf("输入一组字符(形式为W-M):\n");
if(symmetry())
printf("是回文字符\n");
else
printf("不是回文字符\n");
}

char a[100,b[100];
gets(a);
strcpy(b,a);
strrev(b);
if(strcmp(a,b))
printf("no");
else
printf("yes");

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