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  • 下述C语言字符数组描述错误的是()A.字符数组可以存放字符串B.字符数组中的字符串可以整体
    千次阅读
    2021-05-19 09:12:37

    函数readDat()是从文件in71.dat中读取20行数据存放到字符串数组xx中(每行字符串长度均小于80)。请

    函数readDat()是从文件in71.dat中读取20行数据存放到字符串数组xx中(每行字符串长度均小于80)。请编制函数jsSon(),其功能是:以行为单位对字符串按下面给定的条件进行排序,排序后的结果仍按行重新存入字符串数组xx中。最后调用函数 writeDat()把结果xx输出到文件out71.dat中。

    条件:从字符串中间一分为二,左边部分按字符的ASCⅡ值降序排序,右边部分按字符的ASCⅡ值升序排序。如果原字符串长度为奇数,则最中间的字符不参加排序,字符仍放在原位置上。

    例如: 位置 0 1 2 3 4 5 6 7 8

    源字符串 a b c d h g f e

    1 2 3 4 9 8 7 6 5

    处理后的字符串 d c b a e f g h

    4 3 2 1 9 5 6 7 8

    注意:部分源程序已给出。

    请勿改动主函数main()、读函数readDat()和写函数writeDat()的内容。

    试题程序:

    include<stdio. h>

    inc lude< st ring. h>

    inc lude<conio, h>

    char xx[20] [80];

    void jsSort()

    {

    }

    void main ( )

    {

    readDat ();

    jsSort ();

    writeDat ( );

    }

    readDat ( )

    {

    FILE *in;

    int i=0;

    char *p;

    in=fopen ( "in71.dat", "r");

    while (i<20 && fgets(xx[i],80,in)!=NULL)

    {

    p=strchr (xx [i] , ' \n' );

    if(p)

    *p=0;

    i++;

    }

    fclose (in);

    }

    writeDat ( )

    {

    FILE *out;

    int i;

    clrscr ( );

    out=fopen ( "out71.dat", "w" );

    for (i=0; i<20; i++)

    {

    printf("%s\n",xx[i]);

    fprintf (out, "%s\n" ,xx[i] );

    }

    fclose (out);

    }

    更多相关内容
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    下述对C语言字符数组的描述中错误的是()。

    更多相关问题

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    程控放大器并非是模拟量输入通道设计中必须的。

    2.围绝经期常见的症状是

    1 、空气中污染物主要有:

    在营养物质运输中顺浓度梯度方向运输营养物质进入微生物细胞的运输方式是 __________ 和 __________。 (10.0分)

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    压盘的驱动方式有哪几种形式?

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    压盘的驱动方式有哪几种形式?

    患者咽中不迺,如有物梗阻,胸中悶塞,精神抑郁吋則症状加重,舌苔白膩,脉況弦滑。

    ( )是 将钢件加热到Ac3(或Accm)以上30°C~50°C , 保温一定时间后 , 在空气中冷却的热处理工艺。

    程控放大器并非是模拟量输入通道设计中必须的。

    ( )是 将钢件加热到Ac3(或Accm)以上30°C~50°C , 保温一定时间后 , 在空气中冷却的热处理工艺。

    2.围绝经期常见的症状是

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    计算机操作系统是一种()。A.系统软件B.应用软件C.工具软件D.调试软件

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    SNEP 协议中,通信双方共同维护两个计数器,分别代表两种数据传输方向。每发送一组数据后,通信双方各自增加计数器。通过共享计数器状态, SNEP 协议通信开销比较低。基于计数器交换协议,通信

    「兄は姉にもましてもっとよく食べる。」から、姉も食いしん坊ということが分かる。

    859.()在比例的长短和形式方面,如果比较相同,就容易获得相互统一的视觉感受,同时,也能极大地丰富系列整体的内容。

    Lead Compound 译为 ( )。

    SNEP 协议中,通信双方共同维护两个计数器,分别代表两种数据传输方向。每发送一组数据后,通信双方各自增加计数器。通过共享计数器状态, SNEP 协议通信开销比较低。基于计数器交换协议,通信

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  • 在下述C语言字符数组描述中,有错误的是()。更多相关问题In the last ten years in China, 150 million people moved out of poverty. ______, the challengesare sHe speaks English well indeed, but of ...

    在下述对C语言字符数组的描述中,有错误的是()。

    更多相关问题

    In the last ten years in China, 150 million people moved out of poverty. ______, the challengesare s

    He speaks English well indeed, but of course not ____ a native speaker.[ ]A. as fluent as B. more fl

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