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  • c语言第三例

    标准的输入输出函数:

    putchar(输出字符)

    getchar(获取输入字符)

    printf(格式输出)

    scanf(格式输入)

    puts(输出字符串)

    gets(获取输入字符串)

    #include <studio.h>

    #include<math.h>

    int main(){

    double a,b,c,disc,x1,x2,p,q;

    scanf("%1f%1f%1f",&a,&b,&c);

    disc=b*b-4*a*c;

    p=-b/(2.0*a);

    q=sqrt(disc)/(2.0*a);

    x1=p+q,x2=p-q;

    printf("x1=%7.2f x2=7.2f ",x1,x2);

    return 0;

    }

    #include <studio.h>

    int main(){

    char a='A' ,b='D',c='Y';

    purchar(a);

    purchar(b);

    purchar(c);

    purchar( );

    return 0;

    }

    #include <studio.h>

    int main(){

    char a ,b,c;

    a=getchar();   //从键盘输入一个字符,送给变量a

    b=getchar();

    c=getchar();

    purchar(a);  //将变量值输出

    purchar(b);

    purchar(c);

    purchar( );

    return 0;

    }

    #include <studio.h>

    int main(){

    float a,b,c,t;

    scanf("%f,%f,%f",&a,&b,&c);

    if (a>b){

    t=a;

    a=b;

    c=t;

    }

    if(a>c){

    t=a;

    a=c;

    c=t;

    }

    if (b>c){

    t=b;

    b=c;

    c=t;

    }

    printf("%5.2f,%5.2f,%5.2f ",a,b,c);

    return  0;

    }

    }

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    12-30
    2016-12-29
  • 原文地址:https://www.cnblogs.com/1314520xh/p/7835396.html
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