我正在尝试学习C语言并理解语言...
请参见下面的示例代码，如何创建一个名为“ reverseString”的函数，该函数将从“ main”函数中删除“ for”循环？
#include <stdio.h>
#include <string.h>
#define NUMBER_OF_STRING 100
#define MAX_STRING_SIZE 50
void print_array(const char commonWords[NUMBER_OF_STRING][MAX_STRING_SIZE])
{
int count = 1;
for (int i = 0; i < NUMBER_OF_STRING; i++, count++) {
printf("%_7s is word number: %d\n", commonWords[i], count);
}
}
int main() {
char commonWords[NUMBER_OF_STRING][MAX_STRING_SIZE] = {"the", "be", "to", "of", "and", "a", "in", "that", "have", "I", "it", "for", "not", "on", "with", "he", "as", "you", "do", "at", "this", "but", "his", "by", "from", "they", "we", "say", "her", "she", "or", "an", "will", "my", "one", "all", "would", "there", "their", "what", "so", "up", "out", "if", "about", "who", "get", "which", "go", "me", "when", "make", "can", "like", "time", "no", "just", "him", "know", "take", "people", "into", "year", "your", "good", "some", "could", "them", "see", "other", "than", "then", "now", "look", "only", "come", "its", "over", "think", "also", "back", "after", "use", "two", "how", "our", "work", "first", "well", "way", "even", "new", "want", "because", "any", "these", "give", "day", "most", "us"};
printf("Before reverse:\n");
print_array(commonWords);
// *** reverse function which requires its own function ***
for (int i = 0; i < NUMBER_OF_STRING; i++)
{
for (int j = 0, k = strlen(commonWords[i]) - 1; j < k; j++, k--)
{
char temp = commonWords[i][j];
commonWords[i][j] = commonWords[i][k];
commonWords[i][k] = temp;
}
}
printf("\nAfter reverse:\n");
print_array(commonWords);
return 0;
}
预期输出：
Before reverse:
the is word number: 1
be is word number: 2
to is word number: 3
of is word number: 4
and is word number: 5
a is word number: 6
in is word number: 7
that is word number: 8
have is word number: 9
I is word number: 10
it is word number: 11
for is word number: 12
not is word number: 13
on is word number: 14
with is word number: 15
he is word number: 16
as is word number: 17
you is word number: 18
do is word number: 19
at is word number: 20
this is word number: 21
but is word number: 22
his is word number: 23
by is word number: 24
from is word number: 25
they is word number: 26
we is word number: 27
say is word number: 28
her is word number: 29
she is word number: 30
or is word number: 31
an is word number: 32
will is word number: 33
my is word number: 34
one is word number: 35
all is word number: 36
would is word number: 37
there is word number: 38
their is word number: 39
what is word number: 40
so is word number: 41
up is word number: 42
out is word number: 43
if is word number: 44
about is word number: 45
who is word number: 46
get is word number: 47
which is word number: 48
go is word number: 49
me is word number: 50
when is word number: 51
make is word number: 52
can is word number: 53
like is word number: 54
time is word number: 55
no is word number: 56
just is word number: 57
him is word number: 58
know is word number: 59
take is word number: 60
people is word number: 61
into is word number: 62
year is word number: 63
your is word number: 64
good is word number: 65
some is word number: 66
could is word number: 67
them is word number: 68
see is word number: 69
other is word number: 70
than is word number: 71
then is word number: 72
now is word number: 73
look is word number: 74
only is word number: 75
come is word number: 76
its is word number: 77
over is word number: 78
think is word number: 79
also is word number: 80
back is word number: 81
after is word number: 82
use is word number: 83
two is word number: 84
how is word number: 85
our is word number: 86
work is word number: 87
first is word number: 88
well is word number: 89
way is word number: 90
even is word number: 91
new is word number: 92
want is word number: 93
because is word number: 94
any is word number: 95
these is word number: 96
give is word number: 97
day is word number: 98
most is word number: 99
us is word number: 100
After reverse:
eht is word number: 1
eb is word number: 2
ot is word number: 3
fo is word number: 4
dna is word number: 5
a is word number: 6
ni is word number: 7
taht is word number: 8
evah is word number: 9
I is word number: 10
ti is word number: 11
rof is word number: 12
ton is word number: 13
no is word number: 14
htiw is word number: 15
eh is word number: 16
sa is word number: 17
uoy is word number: 18
od is word number: 19
ta is word number: 20
siht is word number: 21
tub is word number: 22
sih is word number: 23
yb is word number: 24
morf is word number: 25
yeht is word number: 26
ew is word number: 27
yas is word number: 28
reh is word number: 29
ehs is word number: 30
ro is word number: 31
na is word number: 32
lliw is word number: 33
ym is word number: 34
eno is word number: 35
lla is word number: 36
dluow is word number: 37
ereht is word number: 38
rieht is word number: 39
tahw is word number: 40
os is word number: 41
pu is word number: 42
tuo is word number: 43
fi is word number: 44
tuoba is word number: 45
ohw is word number: 46
teg is word number: 47
hcihw is word number: 48
og is word number: 49
em is word number: 50
nehw is word number: 51
ekam is word number: 52
nac is word number: 53
ekil is word number: 54
emit is word number: 55
on is word number: 56
tsuj is word number: 57
mih is word number: 58
wonk is word number: 59
ekat is word number: 60
elpoep is word number: 61
otni is word number: 62
raey is word number: 63
ruoy is word number: 64
doog is word number: 65
emos is word number: 66
dluoc is word number: 67
meht is word number: 68
ees is word number: 69
rehto is word number: 70
naht is word number: 71
neht is word number: 72
won is word number: 73
kool is word number: 74
ylno is word number: 75
emoc is word number: 76
sti is word number: 77
revo is word number: 78
kniht is word number: 79
osla is word number: 80
kcab is word number: 81
retfa is word number: 82
esu is word number: 83
owt is word number: 84
woh is word number: 85
ruo is word number: 86
krow is word number: 87
tsrif is word number: 88
llew is word number: 89
yaw is word number: 90
neve is word number: 91
wen is word number: 92
tnaw is word number: 93
esuaceb is word number: 94
yna is word number: 95
eseht is word number: 96
evig is word number: 97
yad is word number: 98
tsom is word number: 99
su is word number: 100
Process finished with exit code 0
参考：
https://www.codingame.com/playgrounds/14213/how-to-play-with-strings-in-c/array-of-c-string
答案 0 :(得分：1)
char *reverseString(char *string)
{
for (int j = 0, k = strlen(string) - 1; j < k; j++, k--)
{
char temp = string[j];
string[j] = string[k];
string[k] = temp;
}
return string;
}
来自main
// *** reverse function which requires its own function ***
for (int i = 0; i < NUMBER_OF_STRING; i++)
{
reverseString(commonWords[i]);
}