outfile=open("C:/Users/USER/Desktop/20190517-20174627-김혜진/11/phones1.txt","w")

outfile.write("홍길동 010-1234-5678\n")
outfile.write("김철수 010-1234-5679\n")
outfile.write("김영희 010-1234-5680\n")

outfile.close()
