单行输入

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if __name__=="__main__":
  ls = list(map(int,input().strip().split()))
  ls.sort()
  print(" ".join(map(str,ls)))

多行输入

不确定行

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if __name__=="__main__":
  while True:
    try:
      a,b = map(int,input().strip().split())
      print(a+b)
    except EOFError:
      break

确定行数

指定结束符号

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if __name__=="__main__":
  while True:
    try:
      a,b = map(int,input().strip().split())
      if a==0 and b==0:
        break
      print(a+b)
    except EOFError:
      break

确定行数，指定结束符号

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if __name__=="__main__":
  n = int(input().strip())
  for i in range(n):
    a,b = map(int,input().strip().split())
    if a==0 and b==0:
      break
    print(a+b)

不确定行数，不确定个数

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if __name__=="__main__":
  while True:
    try:
      data = list(map(int,input().strip().split()))
      n,array = data[0],data[1:]
      print(sum(array))
      # print(n,array)
      # sum = 0
      # for i in range(n):
      #   sum+=array[i]
      # print(sum)
    except EOFError:
      break

确定行数，不确定个数

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if __name__=="__main__":
  nums = int(input().strip())
  for i in range(nums):
    data = list(map(int,input().strip().split()))
    n,array = data[0],data[1:]
    print(sum(array))

确定行数，不确定类型

参考视频：Python之ACM输入-单行输入_哔哩哔哩_bilibili