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RegularExpressions Succinctly(Syncfusion,2014)
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上传时间: 2015-03-20
详细说明: What exactly are regular expressions? Those cryptic strings you’ll see in code and wonder, “What on earth is that?” What does \b([1-9]|1[0-2]|0[1-9]){1}(:[0-5][0-9][aApP][mM]){1}\b mean? In this book, we hope to provide enough guidance to not only interpret the above (and other expressions), but also to write and use your own. Simply put, a regular expression (abbreviated to regex hereafter), is a pattern of characters that are used to find matches in a larger string or text. The pattern describes what a string that matches shou ld look like. For example, if we have the following text, “the gray hound chased the red fox for over a full mile,” we might want to find the color gray in the text. A regex to find the word “gray” in the text would simply be the characters ‘gray’. Of course, almost every programming language can do that. ...展开收缩
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