c - C 中的勾股定理程序

Question

#include <stdio.h>

float function (float x, float y);
float function2 (float x, float z);
float function3 (float y, float z);

float main()

{
    float x;
    float y;
    float z; 

    {

    printf("Please insert length of adjacent side");
    scanf("%f", &x); 

    printf("Please insert length of opposite side");
    scanf("%f", &y); 

    printf("Please insert length of the hypotenuse");
    scanf("%f", &z);


    }

    {

    if (z = 0){
        printf("The length of the hypotenuse is %f",  function (x, y));}

    else if (y = 0){ 
        printf("The length of the opposite side is %f",  function2(x, z));} 

    else if (x=0){
        printf("The length of the adjacent side is %f",  function3(y, z));} 

    }

}


float function(float x, float y) {

    return(sqrt(((x*x)+(y*y))));

}

float function2(float x, float z) {

    return(sqrt(((z*z)-(x*x))));

}

float function3(float y, float z){

    return(sqrt(((z*z)-(y*y))));

}

这是我必须找出直角三角形缺失边的代码。您不知道的那一边的输入是 0。当我运行程序时，它会询问我所有的边，但它不会继续并给我答案……有人能解释一下吗？ 谢谢

Answer 1

= 是赋值运算符。将 z = 0 和任何其他类似的替换为 z == 0

if (z == 0){ // = changed to ==
    printf("The length of the hypotenuse is %f",  function (x, y));}

else if (y == 0){ // = changed to ==
    printf("The length of the opposite side is %f",  function2(x, z));} 

else if (x == 0){ // = changed to ==
    printf("The length of the adjacent side is %f",  function3(y, z));} 

C Operators Reference Sheet