编译器无错误，无警告。但程序不显示结果

//此函数将计算一个数的就对值
#include
float absoluteValue (float x)
{
if ( x < 0 )
x = -x;
return x;
}

//此函数计算一个数的绝对值
float squreRoot (float x)
{
const float epsilon = 0.00001;
float guess =1.0;
while ( absoluteValue (guess * guess - x) >= epsilon );
guess = ( x/guess + guess)/2;
return guess;
}
int main()
{
int number;
printf("What number you want to square?\n");
float x;
scanf("%f",&x);

printf("%f\n" , squreRoot (x) );

return 0;
}

while那一句后面的分号去掉。

guess = ( x/guess + guess)/2;
->
guess = ( x/guess + guess)/2.0f;

while后边分号去掉，死循环了

while ( absoluteValue (guess * guess - x) >= epsilon );
应该是这行后面有了一个分号，于是，进入了死循环，
将分号去掉即可