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Re:请教：怎样理解“函数的重载”？ [Re:WWWLS]

ranchgirl

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发贴: 801
积分: 132

于 2005-10-02 21:52

Name overloading is actually supported in the computer sciences from the very beginning, and in all programming languages.

The plus (+) operator is overloaded long before even OO concepts came into play in computer sciences. It is in Fortran (the first high level computer language) for sure.

int + int: this plus(+) is passed by 2 ints as parameters.
double + double: this plus(+) is passed by 2 doubles as parameters.

======================

All natural languages are overloaded long before computer even invented.

In Chinese：
运动可以锻炼身体！
分子运动是运动！

Chineses word 运动 is overloaded in these 2 sentences, they actually mean different things. We distingush them by context (上下文)。

Compiler is not that smart as we do. Compiler distinguishes overloaded methods by signature!!!

gongshi edited on 2005-10-02 22:00

话题树型展开

人气	标题	作者	字数	发贴时间
9762	请教：怎样理解“函数的重载”？	WWWLS	996	2005-10-02 18:15
7496	Re:请教：怎样理解“函数的重载”？	bluecrystal	1376	2005-10-02 20:50
8059	Re:请教：怎样理解“函数的重载”？	ranchgirl	794	2005-10-02 21:52
7448	Re:请教：怎样理解“函数的重载”？	ranchgirl	134	2005-10-02 22:03
8421	Re:请教：怎样理解“函数的重载”？	bluecrystal	2554	2005-10-02 22:31

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