base64轉(zhuǎn)碼編碼最有效方案
// 編碼
function utf8_to_b64(str) {
return window.btoa(unescape(encodeURIComponent(str)));
}
// 解碼
function b64_to_utf8(str) {
return decodeURIComponent(escape(window.atob(str)));
}
// Usage:
utf8_to_b64('? à la mode'); // 4pyTIMOgIGxhIG1vZGU=
b64_to_utf8('4pyTIMOgIGxhIG1vZGU='); // "? à la mode"
utf8_to_b64('I u2661 Unicode!'); // SSDimaEgVW5pY29kZSE=
b64_to_utf8('SSDimaEgVW5pY29kZSE='); // "I ? Unicode!"
utf8_to_b64('我愛中國'); // 5oiR54ix5Lit5Zu9
b64_to_utf8('SSDimaEgVW5pY29kZSE='); // "我愛中國"
utf8_to_b64(123456); // MTIzNDU2
b64_to_utf8("MTIzNDU2"); // 123456
