JavaRush /ื‘ืœื•ื’ Java /Random-HE /RegEx: 20 ืฆืขื“ื™ื ืงืฆืจื™ื ืœืฉืœื™ื˜ื” ื‘ื‘ื™ื˜ื•ื™ื™ื ืจื’ื•ืœืจื™ื™ื. ื—ืœืง 2
Artur
ืจึธืžึธื”
Tallinn

RegEx: 20 ืฆืขื“ื™ื ืงืฆืจื™ื ืœืฉืœื™ื˜ื” ื‘ื‘ื™ื˜ื•ื™ื™ื ืจื’ื•ืœืจื™ื™ื. ื—ืœืง 2

ืคื•ืจืกื ื‘ืงื‘ื•ืฆื”
RegEx: 20 ืฆืขื“ื™ื ืงืฆืจื™ื ืœืฉืœื™ื˜ื” ื‘ื‘ื™ื˜ื•ื™ื™ื ืจื’ื•ืœืจื™ื™ื. ื—ืœืง 1 ืžืงื•ืจื™ ื›ืืŸ ื‘ื—ืœืง ื”ืื—ืจื•ืŸ ืฉืœื˜ื ื• ื‘ื‘ื™ื˜ื•ื™ื™ื ื”ืจื’ื•ืœืจื™ื™ื ื”ืคืฉื•ื˜ื™ื ื‘ื™ื•ืชืจ, ื•ื›ื‘ืจ ืœืžื“ื ื• ืžืฉื”ื•. ื‘ื—ืœืง ื–ื” ื ืœืžื“ ืขื™ืฆื•ื‘ื™ื ืงืฆืช ื™ื•ืชืจ ืžื•ืจื›ื‘ื™ื, ืื‘ืœ ืชืืžื™ื ื• ืœื™, ื–ื” ืœื ื™ื”ื™ื” ืงืฉื” ื›ืžื• ืฉื–ื” ืื•ืœื™ ื ืจืื”. RegEx: 20 ืฆืขื“ื™ื ืงืฆืจื™ื ืœืฉืœื™ื˜ื” ื‘ื‘ื™ื˜ื•ื™ื™ื ืจื’ื•ืœืจื™ื™ื.  ื—ืœืง 2 - 1ืื– ื‘ื•ืื• ื ืžืฉื™ืš!

ืฉืœื‘ 8: ื›ื•ื›ื‘ *ื•ืกื™ืžืŸ ืคืœื•ืก+

RegEx: 20 ืฆืขื“ื™ื ืงืฆืจื™ื ืœืฉืœื™ื˜ื” ื‘ื‘ื™ื˜ื•ื™ื™ื ืจื’ื•ืœืจื™ื™ื.  ื—ืœืง 2 - 2ืขื“ ื›ื”, ืคื—ื•ืช ืื• ื™ื•ืชืจ ื”ืฆืœื—ื ื• ืœื”ืชืื™ื ืจืง ืžื—ืจื•ื–ื•ืช ื‘ืื•ืจืš ื ืชื•ืŸ. ืื‘ืœ ื‘ื‘ืขื™ื•ืช ื”ืื—ืจื•ื ื•ืช ื”ืชืงืจื‘ื ื• ืœื’ื‘ื•ืœ ืฉืœ ืžื” ืฉืื ื—ื ื• ื™ื›ื•ืœื™ื ืœืขืฉื•ืช ืขื ื”ืกื™ืžื•ืŸ ืฉืจืื™ื ื• ืขื“ ื›ื”. ื ื ื™ื—, ืœืžืฉืœ, ืฉืื ื—ื ื• ืœื ืžื•ื’ื‘ืœื™ื ืœืžื–ื”ื™ Java ื‘ื ื™ 3 ืชื•ื•ื™ื, ืืœื ืฉื™ื›ื•ืœื™ื ืœื”ื™ื•ืช ืœื ื• ืžื–ื”ื™ื ื‘ื›ืœ ืื•ืจืš. ืคืชืจื•ืŸ ืฉืื•ืœื™ ืขื‘ื“ ื‘ื“ื•ื’ืžื” ื”ืงื•ื“ืžืช ืœื ื™ืขื‘ื•ื“ ื‘ื“ื•ื’ืžื” ื”ื‘ืื”:
ืชื‘ื ื™ืช: [a-zA-Z_$]\w\w 
ืžื—ืจื•ื–ืช:   __e $12 3 3.2 fo Bar r a23 mm ab x
ืชื•ืื: ^^^ ^^^ ^^^ ^^^  
( ื“ื•ื’ืžื ) ื”ืขืจื”ืฉื›ืืฉืจ ืžื–ื”ื” ื—ื•ืงื™ ืืš ืืจื•ืš ืž-3 ืชื•ื•ื™ื, ืจืง ืฉืœื•ืฉืช ื”ืชื•ื•ื™ื ื”ืจืืฉื•ื ื™ื ืžืชืื™ืžื™ื. ื•ื›ืืฉืจ ื”ืžื–ื”ื” ืชืงืฃ, ืื‘ืœ ืžื›ื™ืœ ืคื—ื•ืช ืž-3 ืชื•ื•ื™ื, ืื– ืจื’ืงืก ืœื ืžื•ืฆื ืื•ืชื• ื‘ื›ืœืœ! ื”ื‘ืขื™ื” ื”ื™ื ืฉื‘ื™ื˜ื•ื™ื™ื ื‘ืกื•ื’ืจื™ื™ื []ืชื•ืืžื™ื ื‘ื“ื™ื•ืง ืชื• ืื—ื“, ื•ื›ืš ื’ื ืžื—ืœืงื•ืช ืชื•ื•ื™ื ื›ื’ื•ืŸ \w. ื”ืžืฉืžืขื•ืช ื”ื™ื ืฉื›ืœ ื”ืชืืžื•ืช ื‘ื‘ื™ื˜ื•ื™ ื”ืจื’ื•ืœืจื™ ืฉืœืขื™ืœ ื—ื™ื™ื‘ื•ืช ืœื”ื™ื•ืช ื‘ืื•ืจืš ืฉืœ ืฉืœื•ืฉื” ืชื•ื•ื™ื ื‘ื“ื™ื•ืง. ืื– ื–ื” ืœื ืขื•ื‘ื“ ื›ืžื• ืฉืื•ืœื™ ืงื™ื•ื•ื™ื ื•. *ื”ื“ืžื•ื™ื•ืช ื”ืžื™ื•ื—ื“ื•ืช ื•ื™ื›ื•ืœื•ืช ืœืขื–ื•ืจ ื›ืืŸ +. ืืœื” ื”ื ืžืชืงื ื™ื ืฉื ื™ืชืŸ ืœื”ื•ืกื™ืฃ ืžื™ืžื™ืŸ ืœื›ืœ ื‘ื™ื˜ื•ื™ ื›ื“ื™ ืœื”ืชืื™ื ืœืื•ืชื• ื‘ื™ื˜ื•ื™ ื™ื•ืชืจ ืžืคืขื ืื—ืช. ื›ื•ื›ื‘ Kleene (ืื• "ื›ื•ื›ื‘ื™ืช") *ื™ืฆื™ื™ืŸ ืฉื™ืฉ ืœื”ืชืื™ื ืืช ื”ืืกื™ืžื•ืŸ ื”ืงื•ื“ื ืœื›ืœ ืžืกืคืจ ืคืขืžื™ื, ื›ื•ืœืœ ืืคืก ืคืขืžื™ื. ืกื™ืžืŸ ื”ืคืœื•ืก +ื™ืฆื™ื™ืŸ ืฉืขืœื™ืš ืœื—ืคืฉ ืคืขื ืื—ืช ืื• ื™ื•ืชืจ. ืœืคื™ื›ืš, ื”ื‘ื™ื˜ื•ื™ ืฉืœืคื ื™ื• +ื”ื•ื ื—ื•ื‘ื” (ืœืคื—ื•ืช ืคืขื ืื—ืช), ื‘ืขื•ื“ ืฉื”ื‘ื™ื˜ื•ื™ ืฉืœืคื ื™ื• *ื”ื•ื ืื•ืคืฆื™ื•ื ืœื™, ืืš ื›ืืฉืจ ื”ื•ื ืžื•ืคื™ืข, ื”ื•ื ื™ื›ื•ืœ ืœื”ื•ืคื™ืข ื‘ื›ืœ ืžืกืคืจ ืคืขืžื™ื. ื›ืขืช, ืขื ื”ื™ื“ืข ื”ื–ื”, ืื ื• ื™ื›ื•ืœื™ื ืœืชืงืŸ ืืช ื”ื‘ื™ื˜ื•ื™ ื”ืจื’ื•ืœืจื™ ืœืขื™ืœ:
ืชื‘ื ื™ืช: [a-zA-Z_$]\w* 
ืžื—ืจื•ื–ืช:   __e $123 3.2 fo Barr a23mm ab x 
ืชื•ืื: ^^^ ^^^^ ^^ ^^^^ ^^^^^ ^^ ^ 
( ื“ื•ื’ืžื” ) ื›ืขืช ืื ื• ืžืชืื™ืžื™ื ืžื–ื”ื™ื ื—ื•ืงื™ื™ื ื‘ื›ืœ ืื•ืจืš! ื‘ื™ื ื’ื•! ืื‘ืœ ืžื” ื™ืงืจื” ืื ื”ื™ื™ื ื• ืžืฉืชืžืฉื™ื ื‘- +ื‘ืžืงื•ื *?
ืชื‘ื ื™ืช: [a-zA-Z_$]\w+ 
ืžื—ืจื•ื–ืช:   __e $123 3.2 fo Barr a23mm ab x
ืชื•ืื: ^^^ ^^^^ ^^ ^^^^ ^^^^^ ^^ 
( ื“ื•ื’ืžื” ) ื”ื—ืžืฆื ื• ืืช ื”ืžืฉื—ืง ื”ืื—ืจื•ืŸ, ั…. ื”ืกื™ื‘ื” ืœื›ืš ื”ื™ื ืฉื”ื•ื ื“ื•ืจืฉ +ื”ืชืืžื” ืฉืœ ืชื• ืื—ื“ ืœืคื—ื•ืช, ืืš ืžื›ื™ื•ื•ืŸ ืฉื”ื‘ื™ื˜ื•ื™ ื‘ืกื•ื’ืจื™ื™ื []ืฉืœืคื ื™ื• \w+ื›ื‘ืจ 'ืื›ืœ' ืืช ื”ืชื• x, ืื™ืŸ ื™ื•ืชืจ ืชื•ื•ื™ื ื–ืžื™ื ื™ื, ื›ืš ืฉื”ื”ืชืืžื” ื ื›ืฉืœืช. ืžืชื™ ื ื•ื›ืœ ืœื”ืฉืชืžืฉ +? ื›ืืฉืจ ืื ื—ื ื• ืฆืจื™ื›ื™ื ืœืžืฆื•ื ืœืคื—ื•ืช ื”ืชืืžื” ืื—ืช, ืื‘ืœ ื–ื” ืœื ืžืฉื ื” ื›ืžื” ืคืขืžื™ื ื‘ื™ื˜ื•ื™ ื ืชื•ืŸ ื—ื™ื™ื‘ ืœื”ืชืื™ื. ืœื“ื•ื’ืžื”, ืื ื‘ืจืฆื•ื ื ื• ืœืžืฆื•ื ืžืกืคืจื™ื ื”ืžื›ื™ืœื™ื ื ืงื•ื“ื” ืขืฉืจื•ื ื™ืช:
ืชื‘ื ื™ืช: \d*\.\d+ 
ืžื—ืจื•ื–ืช:   0.011 .2 42 2.0 3.33 4.000 5 6 7.89012 
ื”ืชืืžื•ืช: ^^^^^ ^^ ^^^ ^^^^ ^^^^^^^^^^^^^  
( ื“ื•ื’ืžื ) ื”ืขืจื”ืฉืขืœ ื™ื“ื™ ื”ืคื™ื›ืช ื”ืžืกืคืจื™ื ืžืฉืžืืœ ืœื ืงื•ื“ื” ื”ืขืฉืจื•ื ื™ืช ืœืื•ืคืฆื™ื•ื ืœื™ื™ื, ื”ืฆืœื—ื ื• ืœืžืฆื•ื ื’ื 0.011 ื•ื’ื .2. ืœืฉื ื›ืš, ื”ื™ื™ื ื• ืฆืจื™ื›ื™ื ืœื”ืชืื™ื ื‘ื“ื™ื•ืง ื ืงื•ื“ื” ืขืฉืจื•ื ื™ืช ืื—ืช ืขื \.ื•ืœืคื—ื•ืช ืกืคืจื” ืื—ืช ืžื™ืžื™ืŸ ืœื ืงื•ื“ื” ื”ืขืฉืจื•ื ื™ืช ืขื \d+. ื”ื‘ื™ื˜ื•ื™ ื”ืจื’ื•ืœืจื™ ืฉืœืžืขืœื” ืœื ื™ืชืื™ื ืœืžืกืคืจ ื›ืžื• 3., ื›ื™ ืื ื—ื ื• ืฆืจื™ื›ื™ื ืœืคื—ื•ืช ืกืคืจื” ืื—ืช ืžื™ืžื™ืŸ ืœื ืงื•ื“ื” ื”ืขืฉืจื•ื ื™ืช ื›ื“ื™ ืœื”ืชืื™ื.

ื›ืจื’ื™ืœ, ื‘ื•ืื• ื ืคืชื•ืจ ื›ืžื” ื‘ืขื™ื•ืช ืคืฉื•ื˜ื•ืช:

ืžืฆื ืืช ื›ืœ ื”ืžื™ืœื™ื ื‘ืื ื’ืœื™ืช ื‘ืงื˜ืข ืœืžื˜ื”.
ืชื‘ื ื™ืช:
ืžื—ืจื•ื–ืช: 3 ื•ืขื•ื“ 3 ื–ื” ืฉืฉ ืื‘ืœ 4 ื•ืขื•ื“ ืฉืœื•ืฉ ื–ื” 7
ืชื•ืื:    ^^^^ ^^ ^^^ ^^^ ^^^^ ^^^^^ ^^ 
( ืคืชืจื•ืŸ ) ืžืฆื ืืช ื›ืœ ืกืžืœื™ ื’ื•ื“ืœ ื”ืงื•ื‘ืฅ ื‘ืจืฉื™ืžื” ืœืžื˜ื”. ื’ื“ืœื™ ื”ืงื‘ืฆื™ื ื™ื”ื™ื• ืžื•ืจื›ื‘ื™ื ืžืžืกืคืจ (ืขื ืื• ื‘ืœื™ ื ืงื•ื“ื” ืขืฉืจื•ื ื™ืช) ื•ืื—ืจื™ื• KB, MB, GBืื• TB:
ืชื‘ื ื™ืช:
ืžื—ืจื•ื–ืช:   11TB 13 14.4MB 22HB 9.9GB TB 0KB 
ืชื•ืืžื™ื: ^^^^ ^^^^^^ ^^^^^ ^^^  
( ืคืชืจื•ืŸ )

ืฉืœื‘ 9: ืกื™ืžืŸ ืฉืืœื” "ืื•ืคืฆื™ื•ื ืœื™".?

RegEx: 20 ืฆืขื“ื™ื ืงืฆืจื™ื ืœืฉืœื™ื˜ื” ื‘ื‘ื™ื˜ื•ื™ื™ื ืจื’ื•ืœืจื™ื™ื.  ื—ืœืง 2 - 3ื”ืื ื›ื‘ืจ ื›ืชื‘ืช regex ื›ื“ื™ ืœืคืชื•ืจ ืืช ื”ื‘ืขื™ื” ื”ืื—ืจื•ื ื”? ื”ืื ื–ื” ืขื‘ื“? ืขื›ืฉื™ื• ื ืกื” ืœื™ื™ืฉื ืืช ื–ื” ื›ืืŸ:
ืชื‘ื ื™ืช:
ืžื—ืจื•ื–ืช: 1..3KB 5...GB ..6TB
ื”ืชืืžื•ืช:  
ื‘ืจื•ืจ ืฉืืฃ ืื—ื“ ืžื”ื™ื™ืขื•ื“ื™ื ื”ืœืœื• ืื™ื ื• ื’ื•ื“ืœ ืงื•ื‘ืฅ ื—ื•ืงื™, ื›ืš ืฉื‘ื™ื˜ื•ื™ ืจื’ื•ืœืจื™ ื˜ื•ื‘ ืœื ืืžื•ืจ ืœื”ืชืื™ื ืœืืฃ ืื—ื“ ืžื”ื. ื”ืคืชืจื•ืŸ ืฉื›ืชื‘ืชื™ ื›ื“ื™ ืœืคืชื•ืจ ืืช ื”ื‘ืขื™ื” ื”ืื—ืจื•ื ื” ืชื•ืื ืืช ื›ื•ืœื, ืœืคื—ื•ืช ื‘ื—ืœืงื•:
ืชื‘ื ื™ืช: \d+\.*\d*[KMGT]B 
ืžื—ืจื•ื–ืช:   1..3KB  5...GB .. 6TB 
ืชื•ืืžื™ื: ^^^^^^ ^^^^^^ ^^^ 
( ื“ื•ื’ืžื” ) ืื– ืžื” ื”ื‘ืขื™ื”? ืœืžืขืฉื”, ืื ื—ื ื• ืฆืจื™ื›ื™ื ืœืžืฆื•ื ืจืง ื ืงื•ื“ื” ืขืฉืจื•ื ื™ืช ืื—ืช, ืื ื™ืฉ ื›ื–ื•. ืื‘ืœ *ื–ื” ืžืืคืฉืจ ื›ืœ ืžืกืคืจ ืฉืœ ื”ืชืืžื•ืช, ื›ื•ืœืœ ืืคืก. ื”ืื ื™ืฉ ื“ืจืš ืœื”ืชืื™ื ืจืง ืืคืก ืคืขืžื™ื ืื• ืคืขื ืื—ืช? ืื‘ืœ ืœื ื™ื•ืชืจ ืžืคืขื ืื—ืช? ื›ืžื•ื‘ืŸ ืฉื™ืฉ. "ืื•ืคืฆื™ื•ื ืœื™" ?ื”ื•ื ืžืฉื ื” ืฉืชื•ืื ืœืืคืก ืื• ืื—ื“ ืžื”ืชื•ื•ื™ื ื”ืงื•ื“ืžื™ื, ืืš ืœื ื™ื•ืชืจ:
ืชื‘ื ื™ืช: \d+\.?\d*[KMGT]B 
ืžื—ืจื•ื–ืช: 1.. 3KB 5...GB .. 6TB 
ืชื•ืืžื™ื:     ^^^ ^^^ 
( ื“ื•ื’ืžื” ) ืื ื—ื ื• ืงืจื•ื‘ื™ื ื™ื•ืชืจ ืœืคืชืจื•ืŸ ื›ืืŸ, ืื‘ืœ ื–ื” ืœื ื‘ื“ื™ื•ืง ืžื” ืฉืื ื—ื ื• ืฆืจื™ื›ื™ื. ื ืจืื” ื›ื™ืฆื“ ืœืชืงืŸ ื–ืืช ื‘ื›ืžื” ืฉืœื‘ื™ื ืžืขื˜ ืžืื•ื—ืจ ื™ื•ืชืจ.

ื‘ื™ื ืชื™ื™ื, ื‘ื•ืื• ื ืคืชื•ืจ ืืช ื”ื‘ืขื™ื” ื”ื–ื•:

ื‘ืฉืคื•ืช ืชื›ื ื•ืช ืžืกื•ื™ืžื•ืช (ืœืžืฉืœ Java), ืžืกืคืจื™ื ืฉืœืžื™ื ื•ื ืงื•ื“ื” ืฆืคื” (ื ืงื•ื“ื”) ืขืฉื•ื™ื™ื ืœื”ื™ื•ืช ื‘ืขืงื‘ื•ืช l/ Lื• f/ Fื›ื“ื™ ืœืฆื™ื™ืŸ ืฉื™ืฉ ืœื”ืชื™ื™ื—ืก ืืœื™ื”ื ื›ืืœ ืืจื•ื›ื™ื/ืฆืคื™ื (ื‘ื”ืชืืžื”) ื•ืœื ื›ืืœ int/ื›ืคื•ืœ ืจื’ื™ืœื™ื. ืžืฆื ืืช ื›ืœ ื”ืžืกืคืจื™ื ื”"ืืจื•ื›ื™ื" ื”ื—ื•ืงื™ื™ื ื‘ืฉื•ืจื” ืœืžื˜ื”:
ืชื‘ื ื™ืช:
ืžื—ืจื•ื–ืช:   13 ืœื™ื˜ืจ ืืจื•ืš 2 ืœื™ื˜ืจ 19 ืœื™ื˜ืจ lL 0 
ืชื•ืืžื™ื: ^^^ ^^ ^^ ^ 
( ืคืชืจื•ืŸ )

ืฉืœื‘ 10: ืกื™ืžืŸ "ืื•".|

RegEx: 20 ืฆืขื“ื™ื ืงืฆืจื™ื ืœืฉืœื™ื˜ื” ื‘ื‘ื™ื˜ื•ื™ื™ื ืจื’ื•ืœืจื™ื™ื.  ื—ืœืง 2 - 4ื‘ืฉืœื‘ 8, ื”ื™ื” ืœื ื• ืงืฆืช ืงื•ืฉื™ ืœืžืฆื•ื ืืช ื”ืกื•ื’ื™ื ื”ืฉื•ื ื™ื ืฉืœ ืžืกืคืจื™ ื ืงื•ื“ื” ืฆืคื”:
ืชื‘ื ื™ืช: \d*\.\d+ 
ืžื—ืจื•ื–ืช:   0.011 .2 42 2.0 3.33 4.000 5 6 7.89012 
ื”ืชืืžื•ืช: ^^^^^ ^^ ^^^ ^^^^ ^^^^^^^^^^^^^  
ื”ืชื‘ื ื™ืช ืฉืœืขื™ืœ ืชื•ืืžืช ืžืกืคืจื™ื ืขื ื ืงื•ื“ื” ืขืฉืจื•ื ื™ืช ื•ืœืคื—ื•ืช ืกืคืจื” ืื—ืช ืžื™ืžื™ืŸ ืœื ืงื•ื“ื” ื”ืขืฉืจื•ื ื™ืช. ืื‘ืœ ืžื” ืื ื ืจืฆื” ื’ื ืœื”ืชืื™ื ืžื—ืจื•ื–ื•ืช ื›ืžื• 0.? (ืœืœื ืžืกืคืจื™ื ืžื™ืžื™ืŸ ืœื ืงื•ื“ื” ื”ืขืฉืจื•ื ื™ืช.) ื ื•ื›ืœ ืœื›ืชื•ื‘ ื‘ื™ื˜ื•ื™ ืจื’ื•ืœืจื™ ื›ืš:
ื“ืคื•ืก: \d*\.\d* 
ืžื—ืจื•ื–ืช:   0.011 .2 42 2.0 3.33 4,000 5 6 7.89012 0. . 
ืชื•ืื: ^^^^^ ^^ ^^^ ^^^^ ^^^^^ ^^^^^^^ ^^ ^ 
( ื“ื•ื’ืžื” ) ื–ื” ืชื•ืื 0., ืื‘ืœ ื–ื” ืชื•ืื ื’ื ื ืงื•ื“ื” ื‘ื•ื“ื“ืช ., ื›ืคื™ ืฉื ื™ืชืŸ ืœืจืื•ืช ืœืžืขืœื”. ืœืžืขืฉื”, ืžื” ืฉืื ื—ื ื• ืžื ืกื™ื ืœื”ืชืื™ื ื”ื ืฉืชื™ ืžื—ืœืงื•ืช ืžื—ืจื•ื–ื•ืช ืฉื•ื ื•ืช:
  1. ืžืกืคืจื™ื ืขื ืกืคืจื” ืื—ืช ืœืคื—ื•ืช ืžื™ืžื™ืŸ ืœื ืงื•ื“ื” ื”ืขืฉืจื•ื ื™ืช
  2. ืžืกืคืจื™ื ืขื ืกืคืจื” ืื—ืช ืœืคื—ื•ืช ืžืฉืžืืœ ืœื ืงื•ื“ื” ื”ืขืฉืจื•ื ื™ืช
ื‘ื•ื ื ื›ืชื•ื‘ ืืช 2 ื”ื‘ื™ื˜ื•ื™ื™ื ื”ืจื’ื•ืœืจื™ื™ื ื”ื‘ืื™ื, ื‘ืœืชื™ ืชืœื•ื™ื™ื ื–ื” ื‘ื–ื”:
ื“ืคื•ืก: \d*\.\d+ 
ืžื—ืจื•ื–ืช:   0.011 .2 42 2.0 3.33 4,000 5 6 7.89012 0. .
ืชื•ืื: ^^^^^ ^^ ^^^ ^^^^ ^^^^^ ^^^^^^^  
ื“ืคื•ืก: \d+\.\d* 
ืžื—ืจื•ื–ืช:   0.011 .2 42 2.0 3.33 4.000 5 6 7.89012 0. .
ืชื•ืื: ^^^^^ ^^^ ^^^^ ^^^^^ ^^^^^^^ ^^ 
ืื ื• ืจื•ืื™ื ืฉื‘ืืฃ ืื—ื“ ืžื”ืžืงืจื™ื ื”ืœืœื• ื”ืžื—ืจื•ื–ื•ืช ื”ืžืฉื ื” 42, 5, 6ืื• .ืœื ื ืžืฆืื•ืช ืขืœ ื™ื“ื™ ื”ืžื ื•ืข. ื›ื“ื™ ืœื”ืฉื™ื’ ืืช ื”ืชื•ืฆืื” ื”ื ื“ืจืฉืช, ืœื ื™ื–ื™ืง ืœื ื• ืœืฉืœื‘ ืืช ื”ื‘ื™ื˜ื•ื™ื™ื ื”ืจื’ื•ืœืจื™ื™ื ื”ืœืœื•. ืื™ืš ื ื•ื›ืœ ืœื”ืฉื™ื’ ื–ืืช? ื”ืกื™ืžืŸ "ืื•" |ืžืืคืฉืจ ืœื ื• ืœืฆื™ื™ืŸ ื›ืžื” ืจืฆืคื™ื ืืคืฉืจื™ื™ื ืฉืœ ื”ืชืืžื•ืช ื‘ื‘ืช ืื—ืช ื‘ื‘ื™ื˜ื•ื™ ืจื’ื•ืœืจื™. ื‘ื“ื™ื•ืง ื›ืคื™ []ืฉื”ืกื™ืžืŸ "ืื•" ืžืืคืฉืจ ืœื ื• ืœืฆื™ื™ืŸ ืชื•ื•ื™ื ื‘ื•ื“ื“ื™ื ื—ืœื•ืคื™ื™ื, |ืื ื• ื™ื›ื•ืœื™ื ืœืฆื™ื™ืŸ ื‘ื™ื˜ื•ื™ื™ื ื—ืœื•ืคื™ื™ื ืžืจื•ื‘ื™ ืชื•ื•ื™ื. ืœื“ื•ื’ืžื”, ืื ื ืจืฆื” ืœืžืฆื•ื "ื›ืœื‘" ืื• "ื—ืชื•ืœ", ื ื•ื›ืœ ืœื›ืชื•ื‘ ืžืฉื”ื• ื›ื–ื”:
ื“ืคื•ืก: \ w\w\w 
string:   ื‘ืจื•ืจ ืฉื›ืœื‘ ื”ื•ื ื—ื™ื™ืช ืžื—ืžื“ ื˜ื•ื‘ื” ื™ื•ืชืจ ืžืืฉืจ ื—ืชื•ืœ .
ืชื•ืื: ^^^^^^^^^^ ^^^ ^^^^^^ ^^^ ^^^ ^^^ 
( ื“ื•ื’ืžื” ) ... ืื‘ืœ ื–ื” ืžืชืื™ื ืœื›ืœ ืจืฆืคื™ ื”ืชื•ื•ื™ื ื”ืžืฉื•ืœืฉื™ื ืฉืœ ื”ืžื—ืœืงื” "ืžื™ืœื”". ืื‘ืœ ืœ"ื›ืœื‘" ื•ืœ"ื—ืชื•ืœ" ืื™ืŸ ืืคื™ืœื• ืื•ืชื™ื•ืช ืžืฉื•ืชืคื•ืช, ืื– ืกื•ื’ืจื™ื™ื ืžืจื•ื‘ืขื™ื ืœื ื™ืขื–ืจื• ืœื ื• ื›ืืŸ. ืœื”ืœืŸ ื”ื‘ื™ื˜ื•ื™ ื”ืจื’ื•ืœืจื™ ื”ืคืฉื•ื˜ ื‘ื™ื•ืชืจ ืฉื ื•ื›ืœ ืœื”ืฉืชืžืฉ ื‘ื• ื”ืžืชืื™ื ืœืฉืชื™ ื”ืžื™ืœื™ื ื•ืœืฉืชื™ ื”ืžื™ืœื™ื ื”ืœืœื• ื‘ืœื‘ื“:
ื“ืคื•ืก: dog|cat 
string: ื‘ืจื•ืจ ืฉื›ืœื‘ ื”ื•ื ื—ื™ื™ืช ืžื—ืžื“ ื˜ื•ื‘ื” ื™ื•ืชืจ ืžื—ืชื•ืœ .
ืชื•ืื:               ^^^ ^^^ 
( ื“ื•ื’ืžื” ) ืžื ื•ืข ื”ื‘ื™ื˜ื•ื™ ื”ืจื’ื•ืœืจื™ ืžื ืกื” ืชื—ื™ืœื” ืœื”ืชืื™ื ืืช ื”ืจืฆืฃ ื›ื•ืœื• ืžืฉืžืืœ ืœืชื• |, ืืš ืื ื”ื•ื ื ื›ืฉืœ, ื”ื•ื ืžื ืกื” ืœื”ืชืื™ื ืืช ื”ืจืฆืฃ ืžื™ืžื™ืŸ ืœืชื• |. |ื ื™ืชืŸ ื’ื ืœืฉืจืฉืจ ืžืกืคืจ ืชื•ื•ื™ื ื›ื“ื™ ืœื”ืชืื™ื ืœื™ื•ืชืจ ืžืฉื ื™ ืจืฆืคื™ื ื—ืœื•ืคื™ื™ื:
ื“ืคื•ืก: dog| cat | 
ืžื—ืจื•ื–ืช ื—ื™ื•ืช ืžื—ืžื“: ื‘ืจื•ืจ ืฉื›ืœื‘ ื”ื•ื ื—ื™ื™ืช ืžื—ืžื“ ื˜ื•ื‘ื” ื™ื•ืชืจ ืžื—ืชื•ืœ .
ืชื•ืื:               ^^^ ^^^ ^^^ 
( ื“ื•ื’ืžื )

ืขื›ืฉื™ื• ื‘ื•ืื• ื ืคืชื•ืจ ืขื•ื“ ื›ืžื” ื‘ืขื™ื•ืช ื›ื“ื™ ืœื”ื‘ื™ืŸ ื˜ื•ื‘ ื™ื•ืชืจ ืืช ื”ืฉืœื‘ ื”ื–ื”:

ื”ืฉืชืžืฉ ื‘ืกื™ืžืŸ |ื›ื“ื™ ืœืชืงืŸ ืืช ื”ื‘ื™ื˜ื•ื™ ื”ืจื’ื•ืœืจื™ ื”ืขืฉืจื•ื ื™ ืœืžืขืœื” ื›ื“ื™ ืœื”ืคื™ืง ืชื•ืฆืื” ื›ื–ื•:
ืชื‘ื ื™ืช:
ืžื—ืจื•ื–ืช:   0.011 .2 42 2.0 3.33 4.000 5 6 7.89012 0. .
ืชื•ืื: ^^^^^ ^^ ^^^ ^^^^ ^^^^^ ^^^^^^^ ^^ 
( ืคืชืจื•ืŸ ) ื”ืฉืชืžืฉ ื‘ืกื™ืžืŸ |, ืžื—ืœืงื•ืช ืชื•ื•ื™ื, "ืื•ืคืฆื™ื•ื ืœื™" ?ื•ื›ื•' ื›ื“ื™ ืœื™ืฆื•ืจ ื‘ื™ื˜ื•ื™ ืจื’ื•ืœืจื™ ื™ื—ื™ื“ ื”ืชื•ืื ื”ืŸ ืžืกืคืจ ืฉืœื ื•ื”ืŸ ืžืกืคืจื™ ื ืงื•ื“ื” ืฆืคื” (ื ืงื•ื“ื”), ื›ืคื™ ืฉื ื“ื•ืŸ ื‘ื‘ืขื™ื” ื‘ืกื•ืฃ ื”ืฉืœื‘ ื”ืงื•ื“ื (ื‘ืขื™ื” ื–ื• ืงืฆืช ื™ื•ืชืจ ืžืกื•ื‘ืš, ื›ืŸ ;))
ืชื‘ื ื™ืช:
ืžื—ืจื•ื–ืช:   42L 12 x 3.4f 6l 3.3 0F LF .2F 0. 
ืชื•ืืžื™ื: ^^^ ^^ ^^^^ ^^ ^^^ ^^ ^^^ ^^  
( ืคืชืจื•ืŸ ) 20 ืฆืขื“ื™ื ืงืฆืจื™ื ืœืฉืœื™ื˜ื” ื‘ื‘ื™ื˜ื•ื™ื™ื ืจื’ื•ืœืจื™ื™ื. ื—ืœืง 3 RegEx: 20 ืฆืขื“ื™ื ืงืฆืจื™ื ืœืฉืœื™ื˜ื” ื‘ื‘ื™ื˜ื•ื™ื™ื ืจื’ื•ืœืจื™ื™ื. ื—ืœืง 4
ื”ืขืจื•ืช
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