context.go
func (ctx *Context) ParamsInt(name string) int {
	return com.StrTo(ctx.Params(name)).MustInt()
}
func (ctx *Context) ParamsInt(name string) int {
	return com.StrTo(ctx.Params(name)).MustInt()
}
// ParamsInt returns params result in int type.
// e.g. ctx.ParamsInt(":uid")