正則表達式怎麽匹配4-10字符，包含漢字

var?reg?=?/<span[^>]*class[=\"\']+col1[^>]*>((?:(?!<\/span>)[\s\S])*)<\/span>/gi;

var?html?=?'<span?class="col1">張三</span><span?class="col2"?id="glistid_47546">\r\n<span?class="col1?g_list_his">李·四</span><span?class="col2"?id="glistid_6271">\r\n<span?class="col1?g_list_his">趙五</span><span?class="col2"?id="glistid_7201">\r\n<span?class="col1">11111</span><span?class="col2"?id="glistid_1256">\r\n<span?class="col1">22222</span><span?class="col2"?id="glistid_1256">\r\n<span?class="col1?g_list_his">33333</span><span?class="col2"?id="glistid_7201">';

while?(reg.exec(html))?{

console.log(RegExp.$1);

}

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