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`; const frame=document.getElementById('previewFrame'); frame.srcdoc=src } function toggleAutoRun(){ autoRun=!autoRun; document.getElementById('autoRunBtn').textContent='自动运行: '+(autoRun?'开':'关') } function loadTemplate(name){ if(!templates[name])return; htmlEditor.setValue(templates[name].html);cssEditor.setValue(templates[name].css);jsEditor.setValue(templates[name].js); runCode() } function downloadCode(){ const html=htmlEditor.getValue(),css=cssEditor.getValue(),js=jsEditor.getValue(); const full=`\n\n\n\n\nExported\n\n\n\n${html}\n