import (
 "fmt"
 "sort"
)

func wordCounterV1(str string) {
 /*定义变量*/
 stringSlice := str[:]
 temp := str[:]
 wordStatistic := make(map[string]int)

 /*把所有出现的单词放入map中*/
 j := 0
 for i := 0; i < len(stringSlice); i++ {
  if !((stringSlice[i] >= 65 && stringSlice[i] <= 90) || (stringSlice[i] >= 97 && stringSlice[i] <= 122)) {
   temp = str[j:i]
   if len(temp) != 0 {
    wordStatistic[temp]++
   }
   j = i + 1
  }
 }

 /*把首字母为大写的单词转换为小写;去除无效字符*/
 for i := range wordStatistic {
  if len(i) > 1 {
   if (i[0] >= 65 && i[0] <= 90) && (i[1] <= 65 || i[1] >= 90) {
    strTemp := make([]byte, len(i), len(i))
    copy(strTemp, i)
    strTemp[0] += 32
    wordStatistic[string(strTemp)] += wordStatistic[i]
    delete(wordStatistic, i)
   }
  } else {
   if i[0] != 'a' && i[0] != 'A' {
    delete(wordStatistic, i)
   } else if i[0] == 'A' {
    wordStatistic["a"] += wordStatistic[i]
    delete(wordStatistic, i)
   }
  }

 }

 /*把map的关键字映射到string切片进行排序*/
 sortSlice := make([]string, 0, len(wordStatistic))
 for i := range wordStatistic {
  sortSlice = append(sortSlice, i)
 }
 sort.Strings(sortSlice)

 /*输出结果*/
 for _, v := range sortSlice {
  fmt.Printf("%s:%d\n", v, wordStatistic[v])
 }
 fmt.Printf("word count:%d\n", len(wordStatistic))
}

func main() {

 str := ` There are moments in life when you miss someone so much 
 that you just want to pick them from your dreams and hug them for 
 real! Dream what you want to dream;go where you want to go;be what 
 you want to be,because you have only one life and one chance to do 
 all the things you want to do.

 　　May you have enough happiness to make you sweet,enough trials
  to make you strong,enough sorrow to keep you human,enough hope to
  make you happy"htmlcode">

C:\Users\24213\go project>cd src\github.com\go-study\lesson6\practice1

C:\Users\24213\go project\src\github.com\go-study\lesson6\practice1>go build

C:\Users\24213\go project\src\github.com\go-study\lesson6\practice1>practice1
a:4
all:1
along:1
always:2
and:8
another:1
appreciate:2
are:2
around:2
bad:1
based:1
be:3
because:1
begins:1
best:1
born:1
brighten:1
brighter:1
brightest:1
can:2
chance:1
comes:1
cry:1
crying:2
day:1
die:1
do:2
don:3
down:1
dream:2
dreams:1
ends:1
enough:4
everyone:2
everything:2
failures:1
feel:1
for:3
forgotten:1
friendship:1
from:1
future:1
go:4
grows:1
happen:1
happiest:1
happiness:2
happy:1
have:7
heartaches:1
hope:1
hug:1
human:1
hurt:1
hurts:2
if:2
importance:1
in:4
is:2
it:3
just:3
keep:1
kiss:1
know:1
let:2
lies:1
life:5
live:1
lives:1
love:1
make:6
may:1
mean:1
message:2
miss:2
moments:1
most:1
much:1
necessarily:1
need:1
nothing:1
of:6
on:3
one:4
only:2
opportunity:1
or:1
other:1
others:1
out:1
past:2
people:3
person:1
pick:1
please:1
probably:1
put:1
re:1
real:1
really:2
searched:1
see:1
send:1
shoes:1
side:1
smile:2
smiling:2
so:2
someone:2
something:1
sorrow:1
strong:1
sweet:1
tear:1
that:6
the:10
their:3
them:3
there:1
they:2
things:2
this:2
those:9
to:19
too:1
touched:2
trials:1
tried:1
until:1
want:6
was:1
way:2
well:1
were:2
what:2
when:5
where:1
who:10
will:3
with:4
worry:1
you:32
your:4
yourself:1
word count:144


总结
以上所述是小编给大家介绍的go语言之给定英语文章统计单词数量(go语言小练习)，希望对大家有所帮助！