代码如下

#include <stdio.h> 

int main(void)
{
	float number;
	int afterDot, intNumber, digit;
	
	scanf("%f", &number);
	
	afterDot = ( number - (int)number ) * 10;
	printf("%d.", afterDot);
	
	intNumber = (int)number;
	while ( intNumber != 0 ) {
		digit = intNumber % 10;
		printf("%d", digit);
		intNumber /= 10;
	}
	
	return 0;
}