完成gtime基本自定义时间格式转换功能

g/os/gtime/gtime_format.go

@@ -113,7 +113,7 @@ func (t *Time) Format(format string) string {
                             s += r
                     }
                 } else {
-                    s += f
+                    s += string(format[i])
                 }
         }
         i++

geg/os/gtime/gtime_format.go

@@ -7,9 +7,12 @@ import (
 
 func main() {
     formats := []string{
-        "Y-m-d H:i:s",
-        "2006-01-02T15:04:05Z07:00",
-        "2006-01-02T15:04:05.999999999Z07:00",
+        "Y-m-d H:i:s.u",
+        "D M d H:i:s e O Y",
+        // 可以使用转义字符转移有意义的格式字母
+        "T\\i\\m\\e \\i\\s: h:i:s a",
+        // format格式不支持标准库格式混合，相互隔离
+        "2006-01-02T15:04:05.000000000Z07:00",
     }
     t := gtime.Now()
     for _, f := range formats {

geg/os/gtime/gtime_layout.go

@@ -0,0 +1,21 @@
+package main
+
+import (
+    "fmt"
+    "gitee.com/johng/gf/g/os/gtime"
+)
+
+func main() {
+    formats := []string{
+        "2006-01-02 15:04:05.000",
+        "Mon Jan _2 15:04:05 MST 2006",
+        "Time is: 03:04:05 PM",
+        "2006-01-02T15:04:05.000000000Z07:00 MST",
+    }
+    t := gtime.Now()
+    for _, f := range formats {
+        fmt.Println(f)
+        fmt.Println(t.Layout(f))
+        fmt.Println()
+    }
+}