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167 lines
3.1 KiB
167 lines
3.1 KiB
package tencentdb
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import (
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"fmt"
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"log"
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"strconv"
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"strings"
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)
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/*
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* 连接多个字符串
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* 2019/05/05
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*/
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func StringJoin(s ...string) string {
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var build strings.Builder
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if len(s) > 0 {
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for _, v := range s {
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build.WriteString(v)
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}
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}
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return build.String()
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}
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/**
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* 字符串转大驼峰 ios_bbbbbbbb -> IosBbbbbbbbb
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*/
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func StrFirstToUpper(str string) string {
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str = strings.ReplaceAll(str, "`", "")
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temp := strings.Split(str, "_")
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var upperStr string
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for y := 0; y < len(temp); y++ {
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vv := []rune(temp[y])
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for i := 0; i < len(vv); i++ {
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if i == 0 {
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vv[i] -= 32
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upperStr += string(vv[i])
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} else {
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upperStr += string(vv[i])
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}
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}
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}
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return upperStr
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}
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func ToString(v interface{}) string {
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var value string
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switch v.(type) {
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case string:
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value = v.(string)
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case int:
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value = strconv.Itoa(v.(int))
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case float64:
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value = strconv.FormatFloat(v.(float64), 'f', 2, 64)
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case float32:
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value = strconv.FormatFloat(float64(v.(float32)), 'f', 2, 64)
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case int64:
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value = strconv.FormatInt(v.(int64), 10)
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case []uint8:
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value = string(v.([]uint8))
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// case []byte:
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// value = string(v.([]byte))
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case interface{}:
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value = v.(string)
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case nil:
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value = ""
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default:
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log.Println("参数值类型错误", v, "not in string|int|float64|interface|int64")
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}
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return strings.Trim(value, " ")
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}
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/**
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* 是否存在在字符切片中
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*/
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func IsInStringArray(arr []string, str string) bool {
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var isIn bool = false
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length := len(arr)
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if length < 1 {
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return false
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}
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for _, item := range arr {
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if item == str {
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isIn = true
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break
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}
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}
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return isIn
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}
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func ToInt(inter interface{}) int {
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var value int
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switch inter.(type) {
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case string:
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value, _ = strconv.Atoi(inter.(string))
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case int:
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value = inter.(int)
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case int64:
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value = int(inter.(int64))
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case float64:
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value, _ = strconv.Atoi(fmt.Sprintf("%1.0f", inter))
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case nil:
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value = 0
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case interface{}:
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value = inter.(int)
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default:
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log.Println("参数值类型错误", inter, "not in string|int|float64|interface|int64")
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}
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return value
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}
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func ToInt64(inter interface{}) int64 {
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var value int64
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switch inter.(type) {
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case string:
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value, _ = strconv.ParseInt(inter.(string), 10, 64)
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case int:
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value = int64(inter.(int))
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case int64:
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value = inter.(int64)
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case float64:
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value_int, _ := strconv.Atoi(fmt.Sprintf("%1.0f", inter))
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value = int64(value_int)
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case nil:
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value = 0
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case interface{}:
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if _, ok := inter.(int64); !ok {
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value = inter.(int64)
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}
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default:
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log.Println("参数值类型错误", inter, "not in string|int|float64|interface|int64")
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}
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return value
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}
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/**
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* 根据第几页计算从第几行开始
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* @param pageNum 第几页
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* @param pageSize 每页几行
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* @return from,offset 开始行数，偏移量
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* 2020/05/15
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* gz
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*/
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func GetPage(pageNum, pageSize interface{}) (string, string) {
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var from string
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var offset int = ToInt(pageSize)
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var pageNumInt, pageSizeInt int = ToInt(pageNum), ToInt(pageSize)
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if pageNumInt < 1 {
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pageNumInt = 1
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}
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if pageSizeInt < 1 {
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offset = 10
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pageSizeInt = 10
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}
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from = ToString((pageNumInt - 1) * pageSizeInt)
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return from, ToString(offset)
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}
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