``forloop.revcounter0`` The number of iterations from the end of the loop (0-indexed) ``forloop.first`` True if this is the first time through the loop ``forloop.last`` True if this is the last time through the loop ``forloop.parentloop`` For nested loops, this is the loop "...
forloop.counter The current iteration of the loop (1-indexed) forloop.counter0 The current iteration of the loop (0-indexed) forloop.revcounter The number of iterations from the end of the loop (1-indexed) forloop.revcounter0 The number of iterations from the end of the loop (0-indexed...
forloop.revcounter -- The number of iterations from the end of the loop (1-indexed) forloop.revcounter0 -- The number of iterations from the end of the loop (0-indexed) forloop.first -- True if this is the first time through the loop forloop.last -- True if this is the last t...
cartesian product, equivalent to a nested for-loop permutations() p[, r] r-length tuples, all possible orderings, no repeated elements combinations() p, r r-length tuples, in sorted order, no repeated elements combinations_with_replacement() p, r r-length tuples, in sorted order, with...
可以利用{%forobjinlistreversed%}反向完成循环。 遍历一个字典: {% for key,val in dic.items %} {{ key }}:{{ val }} {% endfor %} 注:循环序号可以通过{{forloop}}显示 1 2 3 4 5 6 forloop.counter The current iteration of the loop (1-indexed) forloop.counter...
But that doesn’t really matter because the elements of a dictionary are never indexed with integer indices. Instead, you use the keys to look up the corresponding values: >>> print(eng2sp['two']) 'dos' The key'two'always maps to the value “dos” so the order of the items doesn’...
some_string = "wtf" some_dict = {} for i, some_dict[i] in enumerate(some_string): i = 10Output:>>> some_dict # An indexed dict appears. {0: 'w', 1: 't', 2: 'f'}💡 Explanation:A for statement is defined in the Python grammar as: for_stmt: 'for' exprlist 'in' ...
Loop counterforbatching and showing progressj=0batch=[]formovie_dictinmovies_dict:try:movie_dict["embedding"]=embed_movie(movie_dict)batch.append(movie_dict)j+=1ifj%5==0:print("Embedded {} records".format(j))collection.insert(batch)print("Batch insert completed")batch=[]except Exceptionase...
enumerate is useful for obtaining an indexed list: (0, seq[0]), (1, seq[1]), (2, seq[2]), ... 关于enumerate的效果,我们一起来看一下,你就知道为什么不使用enumerate会被吐槽了。这是不使用enumerate的时候,打印列表中的元素和元素在列表中的位置代码: from __future__ import print_function L...
forninrange(2,10):forxinrange(2,n):Ifn%x==0:print(n,’equals’,x,‘*’,n//x)breakelse:#loop fell through without finding a factorprint(n,‘isaprimenumber’) 瞎捣鼓了一个九九乘法表,代码如下 forninrange(1,10):forminrange(1,10):print(n,’*’,m,’=‘,n*m,end=‘\t')print...