⚡️✨ fortune 增加设置底图并加速base64 和下载

data/dl.go

@@ -0,0 +1,21 @@
+package data
+
+import (
+	"io"
+	"net/http"
+	"os"
+)
+
+func DownloadTo(url, file string) error {
+	resp, err := http.Get(url)
+	if err == nil {
+		var f *os.File
+		f, err = os.Create(file)
+		if err == nil {
+			_, err = io.Copy(f, resp.Body)
+			resp.Body.Close()
+			f.Close()
+		}
+	}
+	return err
+}

data/mem.go

@@ -0,0 +1,15 @@
+package data
+
+import "unsafe"
+
+// Str2bytes Fast convert
+func Str2bytes(s string) []byte {
+	x := (*[2]uintptr)(unsafe.Pointer(&s))
+	h := [3]uintptr{x[0], x[1], x[1]}
+	return *(*[]byte)(unsafe.Pointer(&h))
+}
+
+// Bytes2str Fast convert
+func Bytes2str(b []byte) string {
+	return *(*string)(unsafe.Pointer(&b))
+}