python之输出语句

输出语句

多级打印

• 代码

  print("1","+","2","=",1+2)
  

• 结果

  1 + 2 = 3
  

结束符

print打印出的元素默认会用\n作为结束符#如果想改变结束符的话，用end关键字来改变

• 代码

  list = ['1','2','3'];
  #输出元素之间用分隔符隔开
  for elem in list:
      print(elem)
  for elem in list:
      print(elem)
  #不换行输出
  print("\n")
  for elem in list:
      print(elem,end="")
  print("\n")
  #不换行输出
  for elem in list:
      print(elem,end="-")
  print("\n")
  #不换行输出
  for elem in list:
      print(elem,end="，")
  print("\n")
  

• 结果

  1
  2
  3
  1
  2
  3
  
  
  123
  
  1-2-3-
  
  1，2，3，
  
  

分隔符

• 代码

  #分隔符，用于一条print语句一次打印多个元素,默认是空格
  print("qw","wa","we")
  #相邻之间用“，”分隔
  print("qw","wa","we",sep=",")
  #相邻元素用“-”分隔
  print("qw","wa","we",sep="-")
  

• 结果

  qw wa we
  qw,wa,we
  qw-wa-we
  

格式化输出

• 代码

  #字符串
  print ("His name is %s"%("Aviad"))
  #打印整数
  print ("He is %d years old"%(25))
  #打印浮点数
  print ("His height is %f m"%(1.83))
  #打印浮点数保留位数
  print ("His height is %.2f m"%(1.83))
  

• 结果

  His name is Aviad
  He is 25 years old
  His height is 1.830000 m
  His height is 1.83 m
  

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