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<!DOCTYPE html> <html> <body> <h2>采用“严格使用”：</h2> <h3>字符串“arguments”不能用作变量。</h3> <p>在浏览器中激活调试 (F12) 以查看错误报告。</p> <script> "use strict"; var arguments = 3.14; // 这会导致错误 </script> </body> </html>