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1.2 Variables and Arithmetic Expressions

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二, 11/26/2013 - 08:41 — 匿名者

本節以列印出華氏Farenheit-攝氏Celsius對照表來說明「變數」Variables及「算數式」Arithmetic Expressions。以程式來解說，共有四個程式。

先來看看第一個程式執行的結果：

將上結果分兩部份看，

一是每一列有兩個數字從0 -17到300 148，左邊的數字是華氏度數，右邊的數字是攝氏度數，華氏從0度開始，隔20度計算一次攝氏度數，直到300度為止。

第二部份自「argc = 4」開始，這是顯示argc、argv兩變數，詳見程式內說明。

本程式在課本The C Programming Language第9頁，請點此處下載程式後，閱讀程式片段及執行。

做完上述練習後，請至課本The C Programming Language第12頁，並請點此處下載程式後，閱讀程式片段及執行。

做完上述練習後，請至課本The C Programming Language第13頁，並請點此處下載程式後，閱讀Exercise 1-3及執行。

做完上述練習後，請至課本The C Programming Language第13頁，並請點此處下載程式後，閱讀Exercise 1-4及執行。

練習完上述四個程式，希望對「變數」Variables及「算數式」Arithmetic Expressions有初步的了解，萬一仍不清楚，沒關係，多執行程式，做中學。

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