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Editor to share with you how python uses the count () function, I believe most people do not know much about it, so share this article for your reference, I hope you can learn a lot after reading this article, let's go to know it!

Count () collects the number of times a specified character appears in a string str.count ("o") returns a value of 2, o characters that exist in Hello World. # can also specify the count () function to start looking from a location. The syntax is as follows: count ("", start,end) str.count ('oclinic page5, 10) returns a value of: 1, the reason: after specifying the location, the search starts at index 5 and ends with index 10. Between 5 and 10, there is only one return value of 'o'str.count (' ostensible record4 Len (str)): 2, with the index starting at 4 and ending with the string. What are the advantages of len (str) string length Python? 4. Python is an explanatory language, the program written by Python does not need to be compiled into binary code, and can be run directly from the source code; 5. Python is powerful and has many modules, which can basically achieve all the common functions.

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