Gin获取请求参数

package main
import (
	"github.com/gin-gonic/gin"
)

func login(c *gin.Context){
	key := c.Query("wd")
	// value := c.DefaultQuery("wd", "世界") 查询不到用默认值
	c.String(200, key)
}

func main(){
	e := gin.Default()
	e.GET("/login", login)
	e.Run()
}

func fun(c *gin.Context){
    username := c.PostForm("username")
    password := c.DefaultPostForm("password") // 查询不到用默认值
    c.String(200, username)
}

package main
import (
	"github.com/gin-gonic/gin"
)

func login(c *gin.Context){
    s := c.Param("username")
	c.String(200, s)
}

func main(){
	e := gin.Default()
    // localhost:8080/login/taweizhong
    e.GET("/login/:username", login)
	e.Run()
}