+ 1

what is i = i + 1

can't undrstand what is i=i+1 or i=i-1 !!!

15th Dec 2016, 1:15 PM
Abdallah M. Ammar
Abdallah M. Ammar - avatar
5 odpowiedzi
+ 3
I guess it's a typical misunderstanding in Python (and in C, I should say). A single = stands for "assign the expression in the right to the variable in the left", whereas the comparison operator is not =, but == (meaning "are the left and right sides equal?"). A bit weird for beginners, I guess.
15th Dec 2016, 6:05 PM
Álvaro
+ 1
i = i+1 its nothing but every time your adding i by 1 . let me explain the code while initially i =1 1 loop while 1 <=5 yes it will print value i that is 1 now i=i+1 adding i by one results to i=2 2loop : while 2<=5 yes it will print value i that is 2 now i=i+1 adding i by one results to i=3 3loop: while 3 <=5 yes it will print value i that is 3 now i=i+1 adding i by one results to i=4 4loop while 4<=5 yes it will print value i that is 4 now i=i+1 adding i by one results to i=5 5 loop while 5<=5 yes it will print value i that is 5 now i=i+1 adding i by one results to i=6 6 loop while 6 <=5 false program terminates Hope you understood ..
15th Dec 2016, 1:30 PM
Mock
Mock - avatar
0
for more clarity please post the code ..
15th Dec 2016, 1:17 PM
Mock
Mock - avatar
0
i = 1 while i <=5: print(i) i = i + 1 print("Finished!")
15th Dec 2016, 1:18 PM
Abdallah M. Ammar
Abdallah M. Ammar - avatar
0
It means that i takes its value plus one. So if i is 10, i=i+1 makes i 11. It is often used in loops to make a progression in them. In while loops you always need this kind of statement to progress throughout the loop or it will carry on indefinetely. i=0 while i<10 print(i) i=i+1 prints 0 the first time 1 2 3 ... 9 If there wasn't i=i+1 i would always be 0 and loop wouldn't stop printing i.
15th Dec 2016, 1:34 PM
Mario García
Mario García - avatar