loops

问题 Data frame have includes a few thousand vectors that follow a naming pattern. Each vector name includes a noun, then either _a , _b , or _c . Below are the first 10 vars and obs: id turtle_a banana_a castle_a turtle_b banana_b castle_b turtle_c banana_c castle_c A -0.58 -0.88 -0.56 -0.53 -0.32 -0.42 -0.52 -0.89 -0.72 B NA NA NA -0.84 -0.36 -0.26 NA NA NA C 0.00 -0.43 -0.75 -0.35 -0.88 -0.14 -0.26 -0.15 -0.81 D -0.81 -0.63 -0.77 -0.82 -0.83 -0.50 -0.77 -0.25 -0.07 E -0.25 -0.33 -0.09 -0.51 -0

问题 I'm trying to loop a list and that list have 4 arrays inside and each array have 7 values I am looping the list and then when I get an array from the list, since I know how many values have the array I assign each array index like this: personObject.setName(String.valueOf(myArray[0]) and then at the end of the while loop I add to a list of Persons the personObject like this: listOfPersons.add(personObject). My problem is that my list only gets populate with the same object and I know that the

问题 In JMeter I have a CSV list of users, and each of these users is supposed to upload an amount of files. The files are listed in a second CSV. Each user must upload all files. Since the server can't handle all threads at once I set the Thread group to use X users and loop Y times, so that in the end all users upload all files. Test plan - CSV Data Set Config (contains users) --> Recycle = false, Stop thread on EOF = false - Thread Group (X users, Y loops) - - While Controller ( ${__javaScript(

问题 Let's say, I have a bunch of functions a , b , c , d and e and I want to find out if they directly use a loop: def a(): for i in range(3): print(i**2) def b(): i = 0 while i < 3: print(i**2) i += 1 def c(): print("\n".join([str(i**2) for i in range(3)])) def d(): print("\n".join(["0", "1", "4"])) def e(): "for" I want to write a function uses_loop so I can expect these assertions to pass: assert uses_loop(a) == True assert uses_loop(b) == True assert uses_loop(c) == False assert uses_loop(d)

问题 Let's say, I have a bunch of functions a , b , c , d and e and I want to find out if they directly use a loop: def a(): for i in range(3): print(i**2) def b(): i = 0 while i < 3: print(i**2) i += 1 def c(): print("\n".join([str(i**2) for i in range(3)])) def d(): print("\n".join(["0", "1", "4"])) def e(): "for" I want to write a function uses_loop so I can expect these assertions to pass: assert uses_loop(a) == True assert uses_loop(b) == True assert uses_loop(c) == False assert uses_loop(d)

问题 Why doesn't Python have a 'do while' loop like many other programming language, such as C? Example : In the C we have do while loop as below : do { statement(s); } while( condition ); 回答1: There is no do...while loop because there is no nice way to define one that fits in the statement: indented block pattern used by every other Python compound statement. As such proposals to add such syntax have never reached agreement. Nor is there really any need to have such a construct, not when you can

问题 This question already has answers here : How can you dynamically create variables via a while loop? [duplicate] (8 answers) Closed 2 years ago . I know my title may be somewhat confusing, but I had trouble describing my issue. Basically, I need to create a bunch of variables that all equal 0 , and I want to do this with a for loop so I don't have to hard code it. The problem is each variable needs to have a different name and when I call the number from my for loop to create the variable, it

问题 This question already has answers here : How can you dynamically create variables via a while loop? [duplicate] (8 answers) Closed 2 years ago . I know my title may be somewhat confusing, but I had trouble describing my issue. Basically, I need to create a bunch of variables that all equal 0 , and I want to do this with a for loop so I don't have to hard code it. The problem is each variable needs to have a different name and when I call the number from my for loop to create the variable, it

问题 JS/Cypress.io: How to iterate over 2 corresponding sets of data This is what I have currently and it works, but I want to make it more DRY (do not repeat yourself): Using Cypress.io: var states1 = [ "NE", "MO", "KS", "IA", "OK", "OR", "WA", "AZ", "NM", "NC", "SC", "GA", "FL" ]; cy.get('[data-popup-text="26% to 50% of People"]').within(() => { cy.wrap(states1).each(state => { cy.get(`[data-state="${state}"]`).trigger("mouseover", { force: true }); cy.get(`[data-state="${state}"]`).click({

问题 I need to break a loop which has a condition inside it, on any circumstance which the condition meets the exception like this: for($l=0; $l<$subject_count; $l++){ for($a=0; $a<$term_relatives_id_array_count; $a++){ if($subject_array[$l]['id'] == $term_relatives_id_array[$a]['subject_id']){ $subject_echo = true; break; } echo 'a'; } if(!$subject_echo){ echo '<li class="selectable_item" id="'.$subject_array[$l['id'].'">'.$subject_array[$l]['name_fa']; echo '</li>'; } } I used echo 'a'; to see