0.0.4

pkg/st/strings.go

@@ -1,7 +1,9 @@
 package st
 
 import (
+	"encoding/json"
 	"regexp"
+	"strconv"
 	"strings"
 )
 
@@ -52,3 +54,61 @@ func RemoveHTML(str string) string {
 	}
 	return ""
 }
+
+// Strval 获取变量的字符串值
+// 浮点型 3.0将会转换成字符串3, "3"
+// 非数值或字符类型的变量将会被转换成JSON格式字符串
+func Strval(value interface{}) string {
+	// interface 转 string
+	var key string
+	if value == nil {
+		return key
+	}
+
+	switch value.(type) {
+	case float64:
+		ft := value.(float64)
+		key = strconv.FormatFloat(ft, 'f', -1, 64)
+	case float32:
+		ft := value.(float32)
+		key = strconv.FormatFloat(float64(ft), 'f', -1, 64)
+	case int:
+		it := value.(int)
+		key = strconv.Itoa(it)
+	case uint:
+		it := value.(uint)
+		key = strconv.Itoa(int(it))
+	case int8:
+		it := value.(int8)
+		key = strconv.Itoa(int(it))
+	case uint8:
+		it := value.(uint8)
+		key = strconv.Itoa(int(it))
+	case int16:
+		it := value.(int16)
+		key = strconv.Itoa(int(it))
+	case uint16:
+		it := value.(uint16)
+		key = strconv.Itoa(int(it))
+	case int32:
+		it := value.(int32)
+		key = strconv.Itoa(int(it))
+	case uint32:
+		it := value.(uint32)
+		key = strconv.Itoa(int(it))
+	case int64:
+		it := value.(int64)
+		key = strconv.FormatInt(it, 10)
+	case uint64:
+		it := value.(uint64)
+		key = strconv.FormatUint(it, 10)
+	case string:
+		key = value.(string)
+	case []byte:
+		key = string(value.([]byte))
+	default:
+		newValue, _ := json.Marshal(value)
+		key = string(newValue)
+	}
+	return key
+}