3.2
摘要：
```go package main import ( "fmt" "math" ) const da = 0.29999999999999998889776975374843459576368331909180 const db = 0.3 func main() { daStr := fmt.S 阅读全文
posted @ 2018-03-21 23:59 cucy_to 阅读(118) 评论(0) 推荐(0) 编辑
3.1 二进制，浮点 十六进制互转十进制
摘要：
```go
package main import ( "fmt" "strconv"
) const bin = "00001"
const hex = "2f"
const intString = "12"
const floatString = "12.3" func main() { // Decimals res, err := strconv.Atoi(intStrin... 阅读全文
posted @ 2018-03-21 23:56 cucy_to 阅读(280) 评论(0) 推荐(0) 编辑
2.12 指定缩进
摘要：
```go package main import ( "fmt" "strconv" "strings" "unicode"
) func main() { text := "Hi! Go is awesome." text = Indent(text, 6) fmt.Println(text) text = Unindent(text, 3) fmt.Println... 阅读全文
posted @ 2018-03-21 23:53 cucy_to 阅读(103) 评论(0) 推荐(0) 编辑
2.11 whitespace 去掉空格
摘要：
```go package main import ( "fmt" "math" "regexp" "strconv" "strings"
) func main() { stringToTrim := "\t\t\n Go \tis\t Awesome \t\t" trimResult := strings.TrimSpace(stringToTrim) fmt.Pr... 阅读全文
posted @ 2018-03-21 23:52 cucy_to 阅读(133) 评论(0) 推荐(0) 编辑
2.9 字母大小写
摘要：
```go package main import ( "fmt" "strings" "unicode"
) const email = "ExamPle@domain.com"
const name = "isaac newton"
const upc = "upc"
const i = "i" const snakeCase = "first_name" func main(... 阅读全文
posted @ 2018-03-21 23:44 cucy_to 阅读(130) 评论(0) 推荐(0) 编辑
2.8 decode encode
摘要：
cat /Users/zrd/Downloads/gostandardlib/Chapter02/Strings\ and\ Things/recipe08/win1250.txt Gda�sk% decode 阅读全文
posted @ 2018-03-21 23:43 cucy_to 阅读(78) 评论(0) 推荐(0) 编辑
2.7 正则匹配字符串
摘要：
```go package main import ( "fmt" "regexp" ) const refString = `[{ \"email\": \"email@example.com\" \"phone\": 555467890}, { \"email\": \"other@domain 阅读全文
posted @ 2018-03-21 23:24 cucy_to 阅读(100) 评论(0) 推荐(0) 编辑
2.5 tabwriter 格式化输出
摘要：
```go
package main import ( "fmt" "os" "text/tabwriter"
) func main() { w := tabwriter.NewWriter(os.Stdout, 15, 0, 1, ' ', tabwriter.AlignRight) fmt.Fprintln(w, "username\tfirstname\tlastname\... 阅读全文
posted @ 2018-03-21 23:17 cucy_to 阅读(170) 评论(0) 推荐(0) 编辑
