update

.travis.yml

@@ -0,0 +1,14 @@
+language: go
+
+go:
+  - 1.17.x
+  - tip
+
+before_install:
+  - go get -t -v ./...
+
+script:
+  - go test -race -coverprofile=coverage.txt -covermode=atomic
+
+after_success:
+  - bash <(curl -s https://codecov.io/bash)

README.md

@@ -3,14 +3,16 @@
 📦 Golang 扩展包
 
 [comment]: <> (go)
+[![Release](https://img.shields.io/github/release/dtapps/go-library.svg)](https://github.com/dtapps/go-library/releases/latest)
 [![go](https://github.com/dtapps/go-library/actions/workflows/go.yml/badge.svg)](https://github.com/dtapps/go-library/actions/workflows/go.yml)
 [![godoc](https://pkg.go.dev/badge/github.com/dtapps/go-library?status.svg)](https://pkg.go.dev/github.com/dtapps/go-library)
 [![goproxy.cn](https://goproxy.cn/stats/github.com/dtapps/go-library/badges/download-count.svg)](https://goproxy.cn/stats/github.com/dtapps/go-library)
 [![goreportcard.com](https://goreportcard.com/badge/github.com/dtapps/go-library)](https://goreportcard.com/report/github.com/dtapps/go-library)
 [![deps.dev](https://img.shields.io/badge/deps-go-red.svg)](https://deps.dev/go/github.com%2Fdtapps%2Fgo-library)
 [![Coverage Status](https://coveralls.io/repos/github/dtapps/go-library/badge.svg?branch=master)](https://coveralls.io/github/dtapps/go-library?branch=master)
-
-
+[![Sourcegraph](https://sourcegraph.com/github.com/dtapps/go-library/-/badge.svg)](https://sourcegraph.com/github.com/dtapps/go-library?badge)
+[![Build status](https://ci.appveyor.com/api/projects/status/d6rq6xynt8wkev5k?svg=true)](https://ci.appveyor.com/project/dtapps/go-library)
+[![codecov](https://codecov.io/gh/dtapps/go-library/branch/master/graph/badge.svg?token=BrtbyKKPQX)](https://codecov.io/gh/dtapps/go-library)
 
 
 #### 安装使用

utils/gofloat/gofloat.go

@@ -0,0 +1,13 @@
+package float
+
+import "math"
+
+// ToInt64 将float64转成精确的int64
+func ToInt64(num float64, retain int) int64 {
+	return int64(num * math.Pow10(retain))
+}
+
+// ToFloat64 精准float64
+func ToFloat64(num float64, retain int) float64 {
+	return num * math.Pow10(retain)
+}