Method WriteString

http.go:497–501

(s string)

}

func (w *writer) WriteString(s string) (int, error) {
	n, err := io.WriteString(w.w, s)
	w.n += int64(n)
	return n, err
}

func (w *writer) Write(p []byte) (int, error) {
	n, err := w.w.Write(p)