我正在嘗試獲取從 Go API 接收到的字符串數組，并將它們以奇怪的 json 列表格式寫入文件。沒有括號 []，所以我必須為數組中的每個字符串值創建一個“維度”。我正在嘗試使用類型/結構來做到這一點，但我一直卡住（Go 的新功能）。我應該嘗試只使用地圖，還是有辦法做到這一點？這是我現在使用的代碼：package mainimport ( "fmt" "io/ioutil")type Dimension struct { SQL, Type string}type Measure struct { Type string DrillMembers []string}func check(e error) { if e != nil { panic(e) }}func main() { a := []string{"country", "year", "gdpPercap", "lifeExp", "pop", "continent"} cubeSchema := "measures: {\n count: {\n type: `count`,\n drillMembers: " for i, s := range a { cubeSchema += s fmt.Println(cubeSchema) fmt.Println(i) } fileText := []byte(cubeSchema) fmt.Println(cubeSchema) err := ioutil.WriteFile("test.js", fileText, 0644) check(err)}這就是我需要輸出的樣子：measures: { count: { type: `count`, drillMembers: [country] } }, dimensions: { country: { sql: `country`, type: `string` }, year: { sql: `year`, type: `string` }, gdppercap: { sql: `gdppercap`, type: `string` }, lifeexp: { sql: `lifeexp`, type: `string` }, pop: { sql: `pop`, type: `string` }, continent: { sql: `continent`, type: `string` } }現在我一直被以下輸出卡住：measures: { count: { type: `count`, drillMembers: countryyeargdpPercaplifeExppopcontinent
2 回答
慕尼黑5688855
TA貢獻1848條經驗 獲得超2個贊
package main
import (
"fmt"
"io/ioutil"
)
func check(e error) {
if e != nil {
panic(e)
}
}
func main() {
schema := `measures: {
count: {
type: 'count',
drillMembers: [country]
}
},
dimensions: {
`
a := []string{"country", "year", "gdpPercap", "lifeExp", "pop", "continent"}
var cubeSchema string
for _, s := range a {
cubeSchema += s + ": {\n\tsql: " + s + ",\n\ttype: `string`\n},\n"
}
fileText := []byte(schema + cubeSchema + "}\n}")
fmt.Println(cubeSchema)
err := ioutil.WriteFile("test.js", fileText, 0644)
check(err)
}
檢查此代碼。
翻翻過去那場雪
TA貢獻2065條經驗 獲得超14個贊
我試著做第二部分：
package main
import (
"encoding/json"
"fmt"
)
func main() {
a := []string{"country", "year", "gdpPercap", "lifeExp", "pop", "continent"}
var items map[string]sqlType
items = make(map[string]sqlType)
for _, v := range a {
items[v] = sqlType{SQL: v, Type: "string"}
}
dimensions := dimensions{Dimensions: items}
bytes, err := json.Marshal(dimensions)
if err != nil {
panic(err)
}
c := string(bytes)
fmt.Println(c)
}
type sqlType struct {
SQL string `json:"sql"`
Type string `json:"type"`
}
type dimensions struct {
Dimensions map[string]sqlType `json:"dimensions"`
}
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