Detailed explanation of print, printf and sprintf use cases of perl
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Catalogue
Printf
Sprintf
Difference
For more information on usage, you can check the perl user manual.
Perldoc-f print
Perldoc-f printf
Perldoc-f sprintf
They each support three or four command formats. But only one or two are commonly used.
Commonly used:
Print LIST
Print FILEHANDLE LIST
It is not commonly used (mainly because implicit details can lead to reading difficulties):
Print FILEHANDLE
Print $foo;print "Hello $world"; print $filehandle $something;printf
Commonly used:
Printf FORMAT, LIST
Printf FILEHANDLE FORMAT, LIST
It is not commonly used (mainly because implicit details can lead to reading difficulties):
Printf FILEHANDLE
Printf
Printf'This is question% d on% slots, 36882022, 'StackOverflow';sprintf
There is only one command format:
Sprintf FORMAT, LIST
$result = sprintf ('The% s is% dwells,' answer', 42)
In addition, there are many complex uses of sprinf, which are not commonly used by individuals. Refer to perldoc-f sprintf for details.
For example:
Printf'% 2$ d% 1$ commanddescriptionprint, 12, 34; # prints "34 12" printf'% 3$ d% 1$ d, 1, 2, 3; # prints "3 1 1" distinguishes the commanddescriptionprint print information and can be output to a file in a format in which printf can organize the information. Similar to sprintf, the difference is that you can print the format in which sprintf can organize the information. Similar to printf, the difference is that it is only used for string formatting, without any print effect. "perl print, printf, sprintf use case details" is introduced here, thank you for reading. If you want to know more about the industry, you can follow the website, the editor will output more high-quality practical articles for you!
