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一道程序编译顺序的考题,涉及到函数调用的先后顺序及运算符号的优先级等问题。下面我展开给你讲。
C的程序编译总是从main函数开始的,这道题的重点在“fun((int)fun(a+c,b),a-c)) ”语句。
系统首先要确定最外层 fun()函数的实参,第一个参数的确定需要递归调用fun()函数(不妨称其为内层函数)。内层函数的两个参数分别为x=a+b=2+8=10、y=b=5,执行函数体x+y=10+5=15,于是得外层函数的参数x=15。其另一个参数y=a-c=2-b=-6,再次执行函数体,得最终返回值x+y=15+(-6)=9。 (Compiling together the sequence of test procedures, involving the sequence of function calls and operator symbols, such as the priority problem. Now I give you to start speaking. Procedures for C compiler always start from the main function and at这道题the focus of " fun ((int) fun (a+ c, b), ac)) " statement. System must first determine the most outer layer of fun () function of real parameters, the first parameters of recursive calls required fun () function (may be called the inner function). Inner function separately for the two parameters x = a+ b = 2+8 = 10, y = b = 5, to execute the function body x+ y = 10+5 = 15, then the outer function parameters were x = 15 . Its another parameter y = ac = 2-b =- 6, once again to execute the function body may eventually return the value of x+ y = 15+ (-6) = 9.)
- 2009-03-15 15:36:23下载
- 积分:1
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PID_Matlab-AND-Cprogram
PID的matlab和语言编程算法 适合读读理解PID编程实现(Matlab language programming of PID and PID algorithm is suitable read to understand programming)
- 2013-10-31 20:51:08下载
- 积分:1
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CSF-master
说明: CSF布料滤波算法PYTHON+MATLAB(CSF PYTHON+MATLAB code)
- 2020-09-24 15:37:49下载
- 积分:1
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matlabGAtoolsandexamples
matlab遗传算法工具箱函数及实例讲解,包含matlab遗传算法的基本方法和实例。(matlab genetic algorithm toolbox and examples to explain function, genetic algorithm matlab contains the basic methods and examples.)
- 2007-10-29 20:22:03下载
- 积分:1
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Time-Frequency_Analysis_toolbox
matlab时频分析工具箱,其中包含调幅信号,调频信号,相位编码信号,阶跃信号等等(Time-Frequency Analysis toolbox )
- 2011-01-11 22:17:46下载
- 积分:1
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Functions
These are digital modulation source codes.
- 2014-10-29 18:54:30下载
- 积分:1
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CDS
这是一个用matlab编写的构建网络连通支配集的程序。(Build a network connected dominating set of procedures)
- 2014-02-27 22:57:53下载
- 积分:1
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KEFshili
基于singer模型的雷达信号跟踪ekf算法滤波示例,(EKF algorithm filtering example)
- 2018-06-16 22:06:58下载
- 积分:1
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Tut2_Files
In this tutorial you will learn a few of the basic functions of Matlab. First we will start
working with basic mathematical functions, setting variables, and generating time series.
- 2011-08-29 13:07:35下载
- 积分:1
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carrier_recovery
自己编写的载波恢复算法仿真程序,一直在用,性能很好(carrier_recovery source code based on matlab)
- 2016-09-26 20:10:02下载
- 积分:1