1. 理解range()函数的基本用法 在Python 中,range()是一个内置函数,其基本用法是: # range(start, stop[, step]) 1. start是起始值,stop是终止值,step是步长。 2. 使用range()函数生成负数值 如果我们想要生成一个负数范围,比如从 -1 到 -10,我们可以这样设置参数: negative_range=
SEEK_SET or 0 (offset from start of file, offset should be >= 0); other values are SEEK_CUR or 1 (move relative to current position, positive or negative), and SEEK_END or 2 (move relative to end of file, usually negative, although many platforms allow seeking beyond the end of a...
# printing range from negative to positivefornuminrange(-2,5,1):print(num, end=", ") Python范围从正数到负数 在此示例中,我们可以学习如何有效地使用step参数来显示从正到负的数字。 print(" printing range from Positive to Negative")fornuminrange(2,-5,-1):print(num, end=", ") 将range(...
the legal indices for items of a sequence of length 10. It is possible to let the range start at another number, or to specify a different increment (even negative; sometimes this is called the ‘step’):给定的终点永远不是生成序列的一部分；范围（10）生成10个值，长度为10的序列的项目...
As long as step is one or negative one, it’s straightforward to reverse a range: Python >>> def reverse_range(rng): ... return range( ... rng.stop - rng.step, ... rng.start - rng.step, ... -rng.step, ... ) ... >>> reverse_range(range(5, 0, -1)) range(1,...
positive, negative): # anchor: 2D tensor [BATCH_SIZE, DIM] , positive: 2D tensor [BATCH_SIZE, DIM] , negative: 2D tensor [BATCH_SIZE, DIM] , DIM : feature vector dimension (e.g., 128) , BATCH_SIZE : batch size 32 , the input tensors should be normalized to [0,1] range. ,...
range(start, stop[, step]) The return value is calculated by the following formula with the given constraints: r[n] = start + step*n (forboth positiveandnegative step)where, n >=0andr[n] < stop (forpositive step)where, n >= 0andr[n] > stop (fornegative step) ...
range可当成是一种不可变序列。range(start,stop[,step]),range可以传入三个参数,起始值,终止值,步长。其中,start默认值为0,步长默认为1。 range的典型用法就是只指定stop,用于循环指定次数。 代码语言:javascript 代码运行次数:0 运行 AI代码解释 foriinrange(5):print(i) ...
上述操作也可以通过遍历一个可迭代对象的索引来完成,a列表一共5个元素,range(len(a))表示生成a的索引序列,这里打印索引并打印a向量索引下的取值。 4.2 while循环 while循环一般会设定一个终止条件,条件会随着循环的运行而发生变化,当条件满足时,循环终止。while循环可以通过条件制定循环次数,例如通过计数器来终止掉循...
It is important to note that the range() function can only work when the specified value is an integer or a whole number. It does not support the float data type and the string data type. However, you can pass in both positive and negative integer values to it. Let's see what happen...