[Python] an example of if, while, for

a=500
if (500<a<600):
 print("a>500")
elif (a==500) or (a==400):
 print("a=500")
else:
 print("a<500")
 

while a>450:
 print(a, a-1, a-2, a-3, a-4)
 a=a-5
print()
 

while a>400:
 print(a, a-1, a-2, a-3, a-4)
 a=a-5
 if a==415: break
print()
 
 
while a>300:
 a=a-5
 if a%10==0: continue
 print(a, a-1, a-2, a-3, a-4)
print()


x=[1,2,3,4,5]
for i in x:
 print(i/2)
print()
 

for i in range(5):
 for j in range(2,5):
  print(i,j)
print()
 
for i in range(len(x)):
 print(i)
print()

Result---------------------------------------------
a=500
500 499 498 497 496
495 494 493 492 491
490 489 488 487 486
485 484 483 482 481
480 479 478 477 476
475 474 473 472 471
470 469 468 467 466
465 464 463 462 461
460 459 458 457 456
455 454 453 452 451

450 449 448 447 446
445 444 443 442 441
440 439 438 437 436
435 434 433 432 431
430 429 428 427 426
425 424 423 422 421
420 419 418 417 416

405 404 403 402 401
395 394 393 392 391
385 384 383 382 381
375 374 373 372 371
365 364 363 362 361
355 354 353 352 351
345 344 343 342 341
335 334 333 332 331
325 324 323 322 321
315 314 313 312 311
305 304 303 302 301

0.5
1.0
1.5
2.0
2.5

0 2
0 3
0 4
1 2
1 3
1 4
2 2
2 3
2 4
3 2
3 3
3 4
4 2
4 3
4 4

0
1
2
3
4