// 首字母大写

for(int i=;(c=string[i])!='\0';i++)      //  字符串碰到\0结束   C知识

{

    if (c==' ') {

        printf("%c",c),

        word=;

    }else if (word==)

    {

        word=;

        if (c>=&&c<) {     //转换ASCII

            c=c-;

        }

        num++;

        printf("%c",c);

    }else if (word==){

        printf("%c",c);

    }

}

//  去空格

char s1[];

printf("请输入一串字符串：\n");

scanf("%s",array);

int count=;

char s2[];

for (int i = ; i<s1.length; i++) {

    if(s1[i]!=' '){

        s2[count]=s1[i];

        count++;

    }

}

// 求最大字符串  ,

for (int i = ;i<=strlen(s);i++) {

    if(s[i]!=' '){count++;}

    if (s[i]==' '||s[i]=='\0'){

        if(maxLen<count){maxLen = count;maxindex = i-maxLen;

        }

        count=;

        }

    if(maxlen<count){

        maxLen=count;maxindex=i-maxLen+;

    }

}

// 字符串反转,

unsigned int len = sizeof(str);

char temp[len];

for(int i=;i<len;i++){

    int a = len-i-;

    temp[i]=str[a];

    if(i==len-){

        temp[i] = str[i];

    }

}

// 求最大公共字符串

void maxPublicString(char *s1,char *s2){

    unsigned long s1len = strlen(s1);

    unsigned long s2len = strlen(s2);

    int index =  ,count = ;

    for(int i = ; i<s1len ; i++)

    {

        for(int j = ; j<s2len; j++){

            if(s1[i]==s2[j]){

                for(int k =  ;s1[i+k]==s2[j+k] && s2[j+k]!='\0' && s1[i+k]!='\0' ;k++){

                    if(k>count){

                        count = k;//公共字符数

                        index = i;//下标

                    }

                }

            }

        }

    }

    if(count == ){

        printf("没找到最大公共字符串\n");

    }

    else{

        printf("最长公共字符串是:");

        for(int i =  ; i<=count; i++){

            printf("%c",s1[index+i]);

        }

    }

    printf("\n");

}