封装的方法类

convx/to_string.go

@@ -0,0 +1,44 @@
+package convx
+
+import (
+	"errors"
+	"strconv"
+)
+
+// interface 转 string
+func ToString(val interface{}) (str string, err error) {
+
+	var s string
+	if vv, ok := val.(float32); ok {
+		s = strconv.FormatFloat(float64(vv), 'f', -1, 32)
+	} else if vv, ok := val.(float64); ok {
+		s = strconv.FormatFloat(vv, 'f', -1, 64)
+	} else if vv, ok := val.(int); ok {
+		s = strconv.Itoa(vv)
+	} else if vv, ok := val.(int32); ok {
+		s = strconv.Itoa(int(vv))
+	} else if vv, ok := val.(int64); ok {
+		s = strconv.FormatInt(vv, 10)
+	} else if vv, ok := val.(string); ok {
+		s = vv
+	} else if vv, ok := val.(bool); ok {
+		s = strconv.FormatBool(vv)
+	} else if vv, ok := val.(uint); ok {
+		s = strconv.FormatUint(uint64(vv), 10)
+	} else if vv, ok := val.(uint32); ok {
+		s = strconv.FormatUint(uint64(vv), 10)
+	} else if vv, ok := val.(uint64); ok {
+		s = strconv.FormatUint(vv, 10)
+	} else if vv, ok := val.(uint8); ok {
+		s = strconv.FormatUint(uint64(vv), 10)
+	} else if vv, ok := val.(uint16); ok {
+		s = strconv.FormatUint(uint64(vv), 10)
+	} else if vv, ok := val.(int8); ok {
+		s = strconv.FormatInt(int64(vv), 10)
+	} else if vv, ok := val.(int16); ok {
+		s = strconv.FormatInt(int64(vv), 10)
+	} else {
+		return s, errors.New("不支持的参数类型")
+	}
+	return s, nil
+}