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elect(); ta.setSelectionRange(0, code.length); ta.readOnly = false; var result = document.execCommand('copy'); if (result) $(this).text('复制成功'); else $(this).text('复制失败'); ta.blur(); // For iOS $(this).blur(); if (selected) { selection.removeAllRanges(); selection.addRange(selected); } })).on('mouseleave', function(e) { var $b = $(this).find('.copy-btn'); setTimeout(function() { $b.text('复制'); }, 300); }).append(e); })