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   document.addEventListener('DOMContentLoaded', function (event) {            //chrome瀏覽器             document.body.style.zoom = 'reset';            document.addEventListener('keydown', function (e) {                if ((e.ctrlKey === true || e.metaKey === true) &&                     (e.which === 61 || e.which === 107 || e.which === 173 || e.which === 109                         || e.which === 187 || e.which === 189)) {                     e.preventDefault();                 }             }, false);            document.addEventListener('mousewhell DOMMouseScroll', function (e) {                if (e.ctrlKey === true || e.metaKey === true) {                     e.preventDefault();                 }             }, false);         }, false);

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