- function encodeURL(str){
- var s0, i, s, u;
- s0 = ""; // encoded str
- for (i = 0; i < str.length; i++){ // scan the source
- s = str.charAt(i);
- u = str.charCodeAt(i); // get unicode of the char
- if (s == " "){s0 += "+";} // SP should be converted to "+"
- else {
- if ( u == 0x2a || u == 0x2d || u == 0x2e || u == 0x5f || ((u >= 0x30) && (u <= 0x39)) || ((u >= 0x41) && (u <= 0x5a)) || ((u >= 0x61) && (u <= 0x7a))){ // check for escape
- s0 = s0 + s; // don't escape
- }
- else { // escape
- if ((u >= 0x0) && (u <= 0x7f)){ // single byte format
- s = "0"+u.toString(16);
- s0 += "%"+ s.substr(s.length-2);
- }
- else if (u > 0x1fffff){ // quaternary byte format (extended)
- s0 += "%" + (oxf0 + ((u & 0x1c0000) >> 18)).toString(16);
- s0 += "%" + (0x80 + ((u & 0x3f000) >> 12)).toString(16);
- s0 += "%" + (0x80 + ((u & 0xfc0) >> 6)).toString(16);
- s0 += "%" + (0x80 + (u & 0x3f)).toString(16);
- }
- else if (u > 0x7ff){ // triple byte format
- s0 += "%" + (0xe0 + ((u & 0xf000) >> 12)).toString(16);
- s0 += "%" + (0x80 + ((u & 0xfc0) >> 6)).toString(16);
- s0 += "%" + (0x80 + (u & 0x3f)).toString(16);
- }
- else { // double byte format
- s0 += "%" + (0xc0 + ((u & 0x7c0) >> 6)).toString(16);
- s0 += "%" + (0x80 + (u & 0x3f)).toString(16);
- }
- }
- }
- }
- return s0;
- }
- //该片段来自于http://www.codesnippet.cn/detail/161220138059.html
来源: http://www.codesnippet.cn/detail/161220138059.html