|
马上注册,结交更多好友,享用更多功能^_^
您需要 登录 才可以下载或查看,没有账号?立即注册
x
《带你学C带你飞》第一季视频下载地址:传送门y$Uv|
KHFv!5jQRZh&_b,y.gewO9sT
测试题:版权属于:bbs.fishc.com
1gn"u-EU[+LVP9J;HNksM_)
0. 为什么我们说计算机其实是“二傻子”?4g<+05O
&hHAg@^CzFWm?R[ QioL
S;>inEqox,j"f8&v<cs?'HC7-B
1. CPU 唯一认识的语言是什么语言?MK}t%#@('<
|!X*oI)}b^m;U79zB1= Mn$.pFZ
S>uyOd{AT:YDK=R8q_x)1C0L
2. C 语言编写的源代码转换为汇编语言的过程叫什么?lZh%;}Umf
pNGKc"&4n<^}0{ke,qUY
+~1q0-SJD=,;m|>"?L$zh5
3. 编译型语言和解释型语言的本质区别是什么?H2-&{Lk;G>
UY36-Si2^chaH)j!QZdn5:"oP`T
16E(Xt_g~>vA9cR|kJmV]:u
4. 在 Linux 系统上用 C 语言编译的可执行程序,是否能在 Windows 系统上执行?}s.9?jZ{
SK"%)7sT[w|~0('RuJXW*@r=y!jehU
hKS?m%O{*#q+MDY.`znwB
5. 解释型编程语言是如何实现跨平台的?TKu@.m fe"
31.iV&Kb=E+4ZMUIjc0Hk
kn-e)SCW3,+4U yQ_:'P!YID
6. 莫斯密码的原理其实是什么?来自:bbs.fishc.com
4#$k,v6+>&uXPEs.}<B{i_e8]!WM
4!5}(0W1#[>dt^NCw.e_`)U-L@9xGR
7. 视频中小甲鱼“故弄玄虚”的那段密文还原后是什么内容(中文)?RY(2Hqab0P
Es#w2|l)zBLnqg+@[Mi;'fP
A1m4p>&9PLI8Sk#BnwY2Wag^boF
Lpvz{w5q%>4?DWh}lPGrBg';
动动手:来自:bbs.fishc.com
kN,x;y4Dg=_m?'LR")ET]K0Z-Vz
不是说一个合格的程序员需要累积 10 万行的代码量嘛!
{_XKJZqu}(8%hNz;Uow+f,
那么这节课的动动手环节就让大家写一个计算代码量的程序吧~Jtg*r[
x=)*A($I4uf:%GSTX^;-&tK
Powered by bbs.fishc.com
;vOCP,n6Z) yTq(0.K=Y"Ne
程序要求:统计当前目录及所有子目录下,C 语言源文件的代码总行数。xyi,B%
Va>O4Llmd7J]9Fx2CHnWgy
怎么写??????????????????E4d*K
LlxD[$i6cawo,NGznmH~!0?
来自:bbs.fishc.com
Wsaq&d.2!;rG-YBS<RZw@ok
嗯,咱现在还没开始学习任何 C 语言的语法呢,当然是让大家抄啦!!(不抄错也是一件蛮困难的事儿噢,不信你试试看~)g+j(ZGH
aB'hMz,0@sn`pTk!t>6G3K#~{H%OYr
这节课才刚讲 C 语言可移植性高,马上小甲鱼就给自己打脸了!对于目录扫描来说,各个操作系统还真是自成一家……所以请选择你使用的操作系统,抄下代码并编译执行程序。OvF^?
,j_E4"M:B-v}dX=k7uic^nOD{)eC
程序可以成功执行就算过关啦~(记得截图给我看噢^_^)GaPJ,$&c
b1TAuQJ.OBV$h*t,xRq`CHrl%+
Powered by bbs.fishc.com
c2aVJH6.8gntW~]UYN}lZ1O&z7@Kh
Linux 和 MacOS:Powered by bbs.fishc.com
vLX@xDUN|0,[TrFIRl q#include <stdio.h>
#include <unistd.h>
#include <dirent.h>
#include <string.h>
#include <stdlib.h>
#include <sys/stat.h>
#define MAX 256
long total;
int countLines(const char *filename);
int isCode(const char *filename);
void findAllDirs(const char *path);
int countLines(const char *filename)
{
FILE *fp;
int count = 0;
int temp;
if ((fp = fopen(filename, "r")) == NULL)
{
fprintf(stderr, "Can not open the file: %s\n", filename);
return 0;
}
while ((temp = fgetc(fp)) != EOF)
{
if (temp == '\n')
{
count++;
}
}
fclose(fp);
return count;
}
int isCode(const char *filename)
{
int length;
length = strlen(filename);
if (!strcmp(filename + (length - 2), ".c"))
{
return 1;
}
else
{
return 0;
}
}
void findAllDirs(const char *path)
{
DIR *dp;
struct dirent *entry;
struct stat statbuf;
if ((dp = opendir(path)) == NULL)
{
fprintf(stderr, "The path %s is wrong!\n", path);
return;
}
chdir(path);
while ((entry = readdir(dp)) != NULL)
{
lstat(entry->d_name, &statbuf);
if (!strcmp(".", entry->d_name) || !strcmp("..", entry->d_name))
continue;
if (S_ISDIR(statbuf.st_mode))
{
findAllDirs(entry->d_name);
}
else
{
if (isCode(entry->d_name))
{
total += countLines(entry->d_name);
}
}
}
chdir("..");
closedir(dp);
}
int main()
{
char path[MAX] = ".";
printf("计算中...\n");
findAllDirs(path);
printf("目前你总共写了 %ld 行代码!\n\n", total);
return 0;
}
'9+O7)j{kLPd!x~t>FRh"X`w2-
Windows:版权属于:bbs.fishc.com
?}LJuEfWN;$_YMrzB5(2]j#include <io.h>
#include <direct.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#define MAX 256
long total;
int countLines(const char *filename);
void findAllCodes(const char *path);
void findALLFiles(const char *path);
int countLines(const char *filename)
{
FILE *fp;
int count = 0;
int temp;
if ((fp = fopen(filename, "r")) == NULL)
{
fprintf(stderr, "Can not open the file:%s\n", filename);
return 0;
}
while ((temp = fgetc(fp)) != EOF)
{
if (temp == '\n')
{
count++;
}
}
fclose(fp);
return count;
}
void findAllCodes(const char *path)
{
struct _finddata_t fa;
long handle;
char thePath[MAX], target[MAX];
strcpy(thePath, path);
if((handle = _findfirst(strcat(thePath, "/*.c"), &fa)) != -1L)
{
do
{
sprintf(target, "%s/%s", path, fa.name);
total += countLines(target);
}while (_findnext(handle, &fa) == 0);
}
_findclose(handle);
}
void findALLDirs(const char *path)
{
struct _finddata_t fa;
long handle;
char thePath[MAX];
strcpy(thePath, path);
if((handle = _findfirst(strcat(thePath, "/*"), &fa)) == -1L)
{
fprintf(stderr, "The path %s is wrong!\n",path);
return;
}
do
{
if (!strcmp(fa.name, ".") || !strcmp(fa.name, ".."))
continue;
if( fa.attrib == _A_SUBDIR)
{
sprintf(thePath, "%s/%s", path, fa.name);
findAllCodes(thePath);
findALLDirs(thePath);
}
}while (_findnext(handle, &fa) == 0);
_findclose(handle);
}
int main()
{
char path[MAX] = ".";
printf("计算中...\n");
findAllCodes(path);
findALLDirs(path);
printf("目前你总共写了 %ld 行代码!\n\n", total);
system("pause");
return 0;
}
.xGjw'zqC}p^em5S=tLrF]9
图一时之快先看答案,你将失去一次锻炼的机会!QaLrA5qFM_
u(oI{=C4h8>~-!vfjPn_c739V5,.
请先自己思考和动手,再回复查看参考答案。4H`C|.[
.r5O]-R^nta~gzhf2{+TQ1o
测试题答案:Powered by bbs.fishc.com
Powered by bbs.fishc.com
动动手答案:Powered by bbs.fishc.com
Powered by bbs.fishc.com
|
评分
-
查看全部评分
|