javascript - 生成的 CSV 中没有换行符

Question

在我的页面中，我正在编写以下脚本来生成要下载的 CSV。我的字符串 'str' 有一些新行字符的 "\n"但生成的 csv 全部在一行中。我错过了什么吗？

            var fileContent = "data:text/csv;charset=utf-8," + str;
            var a = document.createElement('a');
            a.href = fileContent;
            a.download = filename;
            var e = document.createEvent('MouseEvents');
            e.initMouseEvent('click', true, false, window, 0, 0, 0, 0, 0, false, false, false, false, 0, null);
            a.dispatchEvent(e);

Answer 1

你需要将数据转换成base64

在大多数浏览器中，它就像

var fileContent = "data:text/csv;charset=utf-8;base64," + btoa(str);

However, if you have a Unicode string, this will fail. Consider this instead - source = http://mdn.beonex.com/en/DOM/window.btoa.html#Unicode_Strings

function utf8_to_b64( str ) {
    return window.btoa(unescape(encodeURIComponent(str)));
}
var fileContent = "data:text/csv;charset=utf-8;base64," + utf8_to_b64(str);