print(character) ... a b c d e >>> for index in range(5): ... print(index) ... 0 1 2 3 4 In these examples, you iterate over a tuple, string, and numeric range. Again, the loop traverses the sequence in the or
循环(loop),指的是在满足条件的情况下,重复执行同一段代码。比如,while语句。 迭代(iterate),指的是按照某种顺序逐个访问列表中的每一项。比如,for语句。 遍历(traversal),指的是按照一定的规则访问树形结构中的每个节点,而且每个节点都只访问一次。 递归(recursion),指的是一个函数不断调用自身的行为。比如,以编...
In Python, theforloop is used to iterate over a sequence such as alist, string,tuple, other iterable objects such asrange. With the help offorloop, we can iterate over each item present in the sequence and executes the same set of operations for each item. Using aforloops in Python we...
forxinrange(2,30,3): print(x) Try it Yourself » Else in For Loop Theelsekeyword in aforloop specifies a block of code to be executed when the loop is finished: Example Print all numbers from 0 to 5, and print a message when the loop has ended: ...
To iterate over lines of two different files, we can open both files simultaneously and read lines of each file inside the same for loop. Here is an example: filename1="file1.txt"filename2="file2.txt"withopen(filename1,"r")asfile1,open(filename2,"r")asfile2:forline1,line2inzip...
foriinrange(len(thislist)): print(thislist[i]) Try it Yourself » The iterable created in the example above is[0, 1, 2]. Using a While Loop You can loop through the list items by using awhileloop. Use thelen()function to determine the length of the list, then start at 0 and...
# iterate from i = 0 to 3 for _ in range(0, 4: print('Hi') Run Code Output 0 1 2 3 Here, the loop runs four times. In each iteration, we have displayed Hi. Since we are not using the items of the sequence(0, 1, 2 and 4) in the loop body, it is better to use _...
In this script, we're going to set the bits from left to right using binary bit shifting in the range defined by our CIDR. We use a for loop to iterate through this range and do the math. That math, in words, is: Take the mod of the current iterator and eight. Subtract it from...
Return sends a specified value back to its caller whereas Yield can produce a sequence of values. We should use yield when we want to iterate over a sequence, but don't want to store the entire sequence in memory. import sys # for example when reading a large file, we only care about...
英文: Original Sinmilarly, using While and For loops,you can iterate tuples, dictionaries, and sets.These are called iterables.Iterables has many values within itself,so a loop control structure can iterate through every item inside the iterable. ...