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Remove 07.6.md spaces

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This commit is contained in:
vCaesar
2017-06-09 22:35:18 +08:00
parent ddf9eb7082
commit 2301921ef3
1 changed files with 91 additions and 91 deletions
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182
en/07.6.md
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@@ -10,76 +10,76 @@ The following functions are from the `strings` package. See the official documen
Check if string `s` contains string `substr`, returns a boolean value.
```Go
fmt.Println(strings.Contains("seafood", "foo"))
fmt.Println(strings.Contains("seafood", "bar"))
fmt.Println(strings.Contains("seafood", ""))
fmt.Println(strings.Contains("", ""))
//Output:
//true
//false
//true
//true
fmt.Println(strings.Contains("seafood", "foo"))
fmt.Println(strings.Contains("seafood", "bar"))
fmt.Println(strings.Contains("seafood", ""))
fmt.Println(strings.Contains("", ""))
//Output:
//true
//false
//true
//true
```
- func Join(a []string, sep string) string
Combine strings from slice with separator `sep`.
```Go
s := []string{"foo", "bar", "baz"}
fmt.Println(strings.Join(s, ", "))
//Output:foo, bar, baz
s := []string{"foo", "bar", "baz"}
fmt.Println(strings.Join(s, ", "))
//Output:foo, bar, baz
```
- func Index(s, sep string) int
Find index of `sep` in string `s`, returns -1 if it's not found.
```Go
fmt.Println(strings.Index("chicken", "ken"))
fmt.Println(strings.Index("chicken", "dmr"))
//Output:4
//-1
fmt.Println(strings.Index("chicken", "ken"))
fmt.Println(strings.Index("chicken", "dmr"))
//Output:4
//-1
```
- func Repeat(s string, count int) string
Repeat string `s` `count` times.
```Go
fmt.Println("ba" + strings.Repeat("na", 2))
//Output:banana
fmt.Println("ba" + strings.Repeat("na", 2))
//Output:banana
```
- func Replace(s, old, new string, n int) string
Replace string `old` with string `new` in string `s`. `n` is the number of replacements. If n is less than 0, replace all instances.
```Go
fmt.Println(strings.Replace("oink oink oink", "k", "ky", 2))
fmt.Println(strings.Replace("oink oink oink", "oink", "moo", -1))
//Output:oinky oinky oink
//moo moo moo
fmt.Println(strings.Replace("oink oink oink", "k", "ky", 2))
fmt.Println(strings.Replace("oink oink oink", "oink", "moo", -1))
//Output:oinky oinky oink
//moo moo moo
```
- func Split(s, sep string) []string
Split string `s` with separator `sep` into a slice.
```Go
fmt.Printf("%q\n", strings.Split("a,b,c", ","))
fmt.Printf("%q\n", strings.Split("a man a plan a canal panama", "a "))
fmt.Printf("%q\n", strings.Split(" xyz ", ""))
fmt.Printf("%q\n", strings.Split("", "Bernardo O'Higgins"))
//Output:["a" "b" "c"]
//["" "man " "plan " "canal panama"]
//[" " "x" "y" "z" " "]
//[""]
fmt.Printf("%q\n", strings.Split("a,b,c", ","))
fmt.Printf("%q\n", strings.Split("a man a plan a canal panama", "a "))
fmt.Printf("%q\n", strings.Split(" xyz ", ""))
fmt.Printf("%q\n", strings.Split("", "Bernardo O'Higgins"))
//Output:["a" "b" "c"]
//["" "man " "plan " "canal panama"]
//[" " "x" "y" "z" " "]
//[""]
```
- func Trim(s string, cutset string) string
Remove `cutset` of string `s` if it's leftmost or rightmost.
```Go
fmt.Printf("[%q]", strings.Trim(" !!! Achtung !!! ", "! "))
Output:["Achtung"]
fmt.Printf("[%q]", strings.Trim(" !!! Achtung !!! ", "! "))
Output:["Achtung"]
```
- func Fields(s string) []string
Remove space items and split string with space into a slice.
```Go
fmt.Printf("Fields are: %q", strings.Fields(" foo bar baz "))
//Output:Fields are: ["foo" "bar" "baz"]
fmt.Printf("Fields are: %q", strings.Fields(" foo bar baz "))
//Output:Fields are: ["foo" "bar" "baz"]
```
## strconv
@@ -88,72 +88,72 @@ The following functions are from the `strconv` package. As usual, please see off
- Append series, convert data to string, and append to current byte slice.
```Go
package main
import (
"fmt"
"strconv"
)
func main() {
str := make([]byte, 0, 100)
str = strconv.AppendInt(str, 4567, 10)
str = strconv.AppendBool(str, false)
str = strconv.AppendQuote(str, "abcdefg")
str = strconv.AppendQuoteRune(str, '单')
fmt.Println(string(str))
}
package main
import (
"fmt"
"strconv"
)
func main() {
str := make([]byte, 0, 100)
str = strconv.AppendInt(str, 4567, 10)
str = strconv.AppendBool(str, false)
str = strconv.AppendQuote(str, "abcdefg")
str = strconv.AppendQuoteRune(str, '单')
fmt.Println(string(str))
}
```
- Format series, convert other data types into string.
```Go
package main
package main
import (
"fmt"
"strconv"
)
import (
"fmt"
"strconv"
)
func main() {
a := strconv.FormatBool(false)
b := strconv.FormatFloat(123.23, 'g', 12, 64)
c := strconv.FormatInt(1234, 10)
d := strconv.FormatUint(12345, 10)
e := strconv.Itoa(1023)
fmt.Println(a, b, c, d, e)
}
func main() {
a := strconv.FormatBool(false)
b := strconv.FormatFloat(123.23, 'g', 12, 64)
c := strconv.FormatInt(1234, 10)
d := strconv.FormatUint(12345, 10)
e := strconv.Itoa(1023)
fmt.Println(a, b, c, d, e)
}
```
- Parse series, convert strings to other types.
```Go
package main
package main
import (
"fmt"
"strconv"
)
import (
"fmt"
"strconv"
)
func main() {
a, err := strconv.ParseBool("false")
if err != nil {
fmt.Println(err)
}
b, err := strconv.ParseFloat("123.23", 64)
if err != nil {
fmt.Println(err)
}
c, err := strconv.ParseInt("1234", 10, 64)
if err != nil {
fmt.Println(err)
}
d, err := strconv.ParseUint("12345", 10, 64)
if err != nil {
fmt.Println(err)
}
e, err := strconv.Itoa("1023")
if err != nil {
fmt.Println(err)
}
fmt.Println(a, b, c, d, e)
func main() {
a, err := strconv.ParseBool("false")
if err != nil {
fmt.Println(err)
}
b, err := strconv.ParseFloat("123.23", 64)
if err != nil {
fmt.Println(err)
}
c, err := strconv.ParseInt("1234", 10, 64)
if err != nil {
fmt.Println(err)
}
d, err := strconv.ParseUint("12345", 10, 64)
if err != nil {
fmt.Println(err)
}
e, err := strconv.Itoa("1023")
if err != nil {
fmt.Println(err)
}
fmt.Println(a, b, c, d, e)
}
```
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