C或者C++中，输入一个浮点数，将证书部分和小数部分的数字分别输出，程序应该怎么写？万分感激 编写一个函数，将一个浮点数中的整数部分和小数部分分别输出
\u6c42C/C++ \u7f16\u7a0b \u8f93\u5165\u4e00\u4e2afloat\u578b\u7684\u6570\u636e\uff0c\u5c06\u6574\u6570\u548c\u5c0f\u6570\u90e8\u5206\u5206\u522b\u8f93\u51fa\uff0c\u4f46\u6709\u8981\u6c42\uff01\uff01\u7ed9\u4f60\u4e2a\u601d\u8def:\u5148\u5c06float\u5f3a\u5236\u8f6c\u6362\u4e3aint,\u5c31\u5f97\u5230\u6b63\u6570\u90e8\u5206\u4e86,\u7136\u540e\u518d\u7528float\u51cf\u53bb\u8fd9\u4e2aint,\u5c31\u5f97\u5230\u5c0f\u6570\u90e8\u5206\u4e86
1\u3001\u7f16\u5199\u51fd\u6570\uff0csp_put_num_2\uff1b\u5185\u5bb9\u4e3a\uff1a
create or replace procedure sp_put_num_2(in_num varchar2,
out_num_1 out varchar2,
out_num_2 out varchar2,
out_info out varchar2) as
n_num number;
begin
begin
n_num := to_number(in_num);
out_num_1 := trunc(n_num);
out_num_2 := case when instr(in_num, '.') > 0 then substr(in_num, instr(in_num, '.') + 1) end;
out_info := '\u8f6c\u6362\u6210\u529f';
exception
when others then
out_info := '\u975e\u6570\u503c\u7c7b\u578b';
end;
end;
2\u3001\u51fd\u6570\u8fdb\u884c\u7f16\u8bd1\uff1b
3\u3001\u8fdb\u884c\u51fd\u6570\u591a\u573a\u666f\u6d4b\u8bd5\uff0c\u5982\u8f93\u5165\u4e3a\u5b57\u7b26\u4e32\u7c7b\uff0c\u5219\u8fd4\u56de\u9519\u8bef\u4fe1\u606f\u2018\u975e\u6570\u503c\u7c7b\u578b\u2019\uff1b
4\u3001\u8f93\u5165\u4e3a\u6570\u5b57\u578b\uff0c\u5982'123.25'\uff0c\u518d\u6b21\u6d4b\u8bd5\uff0c\u5206\u522b\u8fd4\u56de\u6574\u6570\u3001\u5c0f\u6570\u90e8\u5206\uff1b
/*
输入浮点数: 36.98
整数部分:36
小数部分:0.980000
Press any key to continue
*/
#include <stdio.h>
int main() {
double dValue,dDecimals;
int Integer;
printf("输入浮点数: ");
scanf("%lf",&dValue);
Integer = (int)dValue;
dDecimals = dValue - Integer;
printf("整数部分:%d
",Integer);
printf("小数部分:%lf
",dDecimals);
return 0;
}
假定浮点数意味着一个double。
// C
#include <stdio.h>
#include <math.h>
int main(void)
{
double i, a, b;
scanf("%lf", &i);
b = modf(i, &a);
printf("%f %f", a, b);
}
// C++
#include <iostream>
#include <cmath>
int main()
{
double i, a, b;
std::cin >> i;
b = std::modf(i, &a);
std::cout << a << ' ' << b;
}
不需要用库存。。。
#include <stdio.h>
int main(){
float f = 36.98;
int i = f;
float a = f - i;
printf("%d, %f\n", i, a);
}
楼上的那位大哥回答得很好~~~我本想回答的,一看,我还是算了吧
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绛旓細C 璇█涓殑鏍囧噯杈撳叆鍑芥暟 `scanf` 鍙互鐢ㄦ潵璇诲彇閿洏杈撳叆鐨勬诞鐐规暟锛岃屼笉闇瑕佹寚瀹氬崰鎹殑琛屽垪銆傞氬父鎯呭喌涓嬶紝鍙互浣跨敤浠ヤ笅褰㈠紡鐨勪唬鐮佷粠鏍囧噯杈撳叆娴侊紙涔熷氨鏄敭鐩橈級涓鍙涓涓诞鐐规暟锛歚``c double x;scanf("%lf", &x);```鍦ㄤ笂杩颁唬鐮佷腑锛宍%lf` 鏄 `scanf` 鍑芥暟鐨勬牸寮忓瓧绗︿覆锛岀敤浜庢寚瀹氳璇诲彇鐨勬暟鎹被鍨嬨
绛旓細include <stdio.h>void main(){float x,y;printf("璇杈撳叆闀垮拰瀹斤細\n");scanf("%f,%f",&f,&f); //鏀寔灏忔暟杈撳叆锛沺rintf("闈㈢Н涓:%.2f\n",x*y); //%.2f鎰忔濇槸鍙栧皬鏁扮偣鍚庝袱浣嶈緭鍑猴紱printf("鍛ㄩ暱涓:%.2f\n",(x+y)*2);} ...
绛旓細```c include <stdio.h> include <math.h> int main() { float num, abs_num;printf("璇杈撳叆涓涓诞鐐规暟锛");scanf("%f", &num);// 璁＄畻缁濆鍊 abs_num = fabs(num);// 杈撳嚭缁撴灉骞朵繚鐣欎袱浣嶅皬鏁 printf("璇ユ诞鐐规暟鐨勭粷瀵瑰间负 %.2f\n", abs_num);return 0;} ```棣栧厛锛屾垜浠０鏄...
绛旓細/ 杈撳叆娴偣鏁: 36.98 鏁存暟閮ㄥ垎:36 灏忔暟閮ㄥ垎:0.980000 Press any key to continue / include <stdio.h>int main() {double dValue,dDecimals;int Integer;printf("杈撳叆娴偣鏁: ");scanf("%lf",&dValue);Integer = (int)dValue;dDecimals = dValue - Integer;printf("鏁存暟閮ㄥ垎:%d\n",...
绛旓細澹版槑鍙橀噺x涓篸ouble鍨(娴偣鍙岀簿搴)鎴杅loat(娴偣鍗曠簿搴)銆傝皟鐢杈撳叆鍑芥暟scanf("%lf",&x);鎴杝canf("%f",&x);鈥斺斿叾涓%lf琛ㄧずx鏄痙ouble鍨嬨%f琛ㄧずfloat鍨嬨傝皟鐢╬rintf("%.5f\n",x);杈撳嚭鈥斺斿叾涓.5琛ㄧず灏忔暟鐐瑰悗淇濈暀5浣嶅皬鏁般
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