標籤:1、考慮一個包含int的檔案,複製到list,如下:ifstream dataFile("ints.bat");list<int> data(istream_iterator<int>(dataFile),istream_iterator<int>());2、上面的代碼不是預期的行為。3、先從最簡單開始,聲明方法 int f(double d); 等價的寫法有 int f (double (d)); int f
標籤:---------------------------------------------------------------------------------------可變數組:array.h#ifndef _ARRAY_H_#define _ARRAY_H_typedef struct { int *array; int size;} Array;// Array不定義成指標類型 *Array 的原因:定義成變數使用範圍更廣,如果定義一個指標類型,那麼 array p
標籤:1、第一個小程式:產生20個30-70之間的隨機數,並計算他們的和,用到arc4random()函數,產生【x y】之間的隨機數,arc4random()%(y-x+1) + x 需要添加標頭檔stdlib.h#include<stdio.h>#include<stdlib.h>int main(){ int a[20]={0}; int sum=0; for(int i=0;
標籤:exercise 1-9/*Write a program to copy its input to its output, replacing each string of one or more blanks by a single blank.*/#include <stdio.h>#define NONBLANK 'a'/* replace string of blanks with a single blank */main(){int c,
標籤:exercise 1-10/*Write a program to copy its input to its output, replacing each tab by \t, each backspace by \b, and each backslash by \\. This makes tabs and backspaces visible in an unambiguous way.*/#include <stdio.h>#define NONBLANK '