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JavaScript 正则表达式字符 [^A-Z]
tryjsref_regexp_not_a-z
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<!DOCTYPE html> <html> <body> <h1>Regular Expressions</h1> <h2>Using [] to find a range of characters</h2> <p>A global search for characters NOT in the range from A to Z:</p> <p id="demo"></p> <script> let text = "This is FreeW3C"; let pattern = /[^A-Z]/g; let result = text.match(pattern); document.getElementById("demo").innerHTML = result; </script> </body> </html>