An warware: string%3A index kuskure

A matsayin mai haɓakawa, abu ne na gama-gari don saduwa da Kuskuren Fihirisar Kirtani. Wannan yana faruwa ne lokacin da kake ƙoƙarin samun dama ga fihirisar da ke waje da kewayon madaidaicin halal a cikin kirtani ko sanya a sauƙaƙe, lokacin da fihirisar da kake ƙoƙarin ɗauko ba ta wanzu a cikin wannan kirtani.

Tushen wannan kuskuren ya ta'allaka ne akan yadda Python ke fassara fihirisar kirtani. A Python, fihirisar kirtani tana farawa daga 0 kuma ta haura zuwa tsayin kirtani a debe 1. Don haka, maƙasudin halal na ƙarshe a cikin kirtani zai zama Tsawon Kirta - 1. Idan ka wuce wannan kewayon, Python zai jefa Kuskuren Index. tare da ƙarin saƙon 'kirtani daga kewayon'.

Maganin don wannan matsalar mai sauƙi ce - kuna buƙatar tabbatar da cewa kuna samun dama ga ingantattun fihirisa a cikin kewayon.

Lambar Python don Magance Kuskuren Fihirisar Kirtani

def check_index(string, index):
    try:
        return string[index]
    except IndexError:
        print('String index out of range!')
        return None

# Checking the function
print(check_index('Python', 5)) # 'n'
print(check_index('Python', 6)) # String index out of range!

A cikin lambar da ke sama, muna ayyana aikin check_index wanda ke ɗaukar kirtani da fihirisa azaman sigogi. Wannan aikin yana ƙoƙari ya dawo da hali a fihirisar da aka bayar. Idan fihirisar da aka bayar ba ta cikin kewayo, toshe kama zai kama keɓanta, ya nuna saƙon da ya dace, kuma ya dawo Babu.

Bayanin Code

Lambar tana farawa ta hanyar ayyana wani aiki da ake kira check_index, wanda ke ɗaukar sigogi biyu: kirtani da fihirisa. A mataki na farko, ta amfani da toshe gwadawa, aikin yana ƙoƙarin mayar da hali a matsayin da aka ƙayyade ta fihirisa.

• Idan fihirisar ta wanzu a cikin kewayon kirtani, Python ya sami nasarar dawo da halin.
• Idan fihirisar ta fita daga kewayon kirtani, Python yana jefa IndexError.

Don magance kuskuren, muna amfani da katangar kama wanda ke ɗaukar banbanin IndexError. Lokacin da aka kama keɓaɓɓen, ana buga saƙo yana sanar da mai amfani cewa fihirisar kirtani ba ta da iyaka. Bayan haka, aikin ya ƙare kuma ya dawo Babu.

Dakunan karatu na Python masu alaƙa da Ayyuka

Yin aiki tare da kirtani a cikin Python an sauƙaƙe shi tare da tarin ayyukan ginanni da ɗakunan karatu. The rance () aiki yawanci ana amfani dashi don gano tsawon kirtani. Wannan na iya taimakawa wajen tabbatar da cewa fihirisar da kuke ƙoƙarin shiga ba ta wuce tsayin kirtani ba. Python's str ɗakin karatu yana da amfani don aiki tare da sarrafa igiyoyi.

A cikin mahallin sarrafa kurakurai, an gina Python a ciki gwada/sai dai tubalan suna ba da damar ingantaccen sarrafa keɓantawa, yana sa lambar ku ta fi ƙarfi da aminci.

Fahimta da yadda ya kamata mu'amala da keɓantacce kamar Kurakurai na Index na String ba kawai zai haɓaka ƙwarewar shirye-shiryenku ba amma kuma yana taimakawa wajen haɓaka ƙaƙƙarfan ƙaƙƙarfan aikace-aikacen Python marasa kuskure. Tare da ingantattun hanyoyin magance kuskuren Python, zaku iya hangowa, kamawa, da kuma sarrafa waɗannan keɓancewar, haɓaka ingancin software gaba ɗaya.