golang官方练习：单词统计

[root@sltvb7v2wy3 jia_maps]# cat exercise_maps.go
package main

import (
        "golang.org/x/tour/wc"
)

func WordCount(s string) map[string]int {
        return map[string]int{"x": 1}
}

func main() {
        wc.Test(WordCount)
}



[root@sltvb7v2wy3 jia_maps]# gor exercise_maps.go
exercise_maps.go:4:2: no required module provides package golang.org/x/tour/wc: go.mod file not found in current directory or any parent directory; see 'go help modules'[root@sltvb7v2wy3 jia_maps]# go install golang.org/x/tour/wc
go: 'go install' requires a version when current directory is not in a module
        Try 'go install golang.org/x/tour/wc@latest' to install the latest version

[root@sltvb7v2wy3 jia_maps]# go install golang.org/x/tour/wc@latest
package golang.org/x/tour/wc is not a main package



[root@sltvb7v2wy3 jia_maps]# go get  golang.org/x/tour/wc@latest
go: go.mod file not found in current directory or any parent directory.
        'go get' is no longer supported outside a module.
        To build and install a command, use 'go install' with a version,
        like 'go install example.com/cmd@latest'
        For more information, see https://golang.org/doc/go-get-install-deprecation
        or run 'go help get' or 'go help install'.



[root@sltvb7v2wy3 jia_maps]# go mod  init example.com/exercise_maps.go
go: creating new go.mod: module example.com/exercise_maps.go
go: to add module requirements and sums:
        go mod tidy
[root@sltvb7v2wy3 jia_maps]#  go mod tidy
go: finding module for package golang.org/x/tour/wc
go: found golang.org/x/tour/wc in golang.org/x/tour v0.1.0
[root@sltvb7v2wy3 jia_maps]# gor exercise_maps.go
FAIL
 f("I am learning Go!") =
  map[string]int{"x":1}
 want:
  map[string]int{"Go!":1, "I":1, "am":1, "learning":1}

[root@sltvb7v2wy3 jia_maps]# 





[root@sltvb7v2wy3 jia_maps]# cat  exercise_maps.go
package main

import (
        "strings"
        "golang.org/x/tour/wc"
)

func WordCount(s string) map[string]int {
        m := make(map[string]int)
        for _, word := range strings.Fields(s) {
                m[word] += 1
        }
        return m
}

func main() {
        wc.Test(WordCount)
}




[root@sltvb7v2wy3 jia_maps]# gor  exercise_maps.go
FAIL
 f("I am learning Go!") =
  map[string]int{"x":1}
 want:
  map[string]int{"Go!":1, "I":1, "am":1, "learning":1}[root@sltvb7v2wy3 jia_maps]# vim exercise_maps.go
[root@sltvb7v2wy3 jia_maps]# gor  exercise_maps.go
PASS
 f("I am learning Go!") = 
  map[string]int{"Go!":1, "I":1, "am":1, "learning":1}
PASS
 f("The quick brown fox jumped over the lazy dog.") = 
  map[string]int{"The":1, "brown":1, "dog.":1, "fox":1, "jumped":1, "lazy":1, "over":1, "quick":1, "the":1}
PASS
 f("I ate a donut. Then I ate another donut.") = 
  map[string]int{"I":2, "Then":1, "a":1, "another":1, "ate":2, "donut.":2}
PASS
 f("A man a plan a canal panama.") = 
  map[string]int{"A":1, "a":2, "canal":1, "man":1, "panama.":1, "plan":1}