{"id":742,"date":"2012-08-16T11:16:18","date_gmt":"2012-08-16T03:16:18","guid":{"rendered":"http:\/\/www.youthtribe.com\/?p=742"},"modified":"2012-08-16T11:16:18","modified_gmt":"2012-08-16T03:16:18","slug":"javascript-%e5%ad%97%e7%ac%a6%e4%b8%b2%e5%ad%97%e8%8a%82%e9%95%bf%e5%ba%a6%e8%ae%a1%e7%ae%97%e5%87%bd%e6%95%b0","status":"publish","type":"post","link":"http:\/\/www.youthtribe.com\/archives\/742","title":{"rendered":"Javascript \u5b57\u7b26\u4e32\u5b57\u8282\u957f\u5ea6\u8ba1\u7b97\u51fd\u6570"},"content":{"rendered":"

A:for\u5faa\u73af\u68c0\u6d4b\u5b57\u7b26\u4e32\u7684\u5b57\u8282\u957f\u5ea6\u65b9\u6cd5\u4e00<\/p>\n

\nvar lenFor = function(str){
\nvar byteLen=0,len=str.length;
\nif(str){
\nfor(var i=0; i<len; i++){
\nif(str.charCodeAt(i)>255){
\nbyteLen += 2;
\n}
\nelse{
\nbyteLen++;
\n}
\n}
\nreturn byteLen;
\n}
\nelse{
\nreturn 0;
\n}
\n}<\/p><\/blockquote>\n

 <\/p>\n

\u4f7f\u7528\u65b9\u6cd5
\nvar strlength=lenFor(str)<\/p>\n

B:for\u5faa\u73af\u68c0\u6d4b\u5b57\u7b26\u4e32\u7684\u5b57\u8282\u957f\u5ea6\u65b9\u6cd5\u4e8c<\/p>\n

\nfunction LEN(str){
\nvar i,sum=0;
\nfor(i=0;i<str.length;i++){
\nif((str.charCodeAt(i)>=0) && (str.charCodeAt(i)<=255))
\nsum=sum+1;
\nelse
\nsum=sum+2;
\n}
\nreturn sum;
\n}<\/p>\n

 <\/p><\/blockquote>\n

C:\u6b63\u5219\u8868\u8fbe\u5f0f\u68c0\u6d4b\u5b57\u7b26\u4e32\u7684\u5b57\u8282\u957f\u5ea6\u65b9\u6cd5\u4e09<\/p>\n

\nvar lenReg = function(str){
\nreturn str.replace(\/[^\\x00-\\xFF]\/g,’**’).length;
\n};<\/p><\/blockquote>\n

 <\/p>\n

\u4f7f\u7528\u65b9\u6cd5\uff1a<\/p>\n

var strlength2=lenReg(str)<\/p>\n

 <\/p>\n","protected":false},"excerpt":{"rendered":"

A:for\u5faa\u73af\u68c0\u6d4b\u5b57\u7b26\u4e32\u7684\u5b57\u8282\u957f\u5ea6\u65b9\u6cd5\u4e00 var lenFor = function(str){ var byteLen=0,len=str.length; if(str){ for(var i=0; i<len; i++){ if(str.charCodeAt(i)>255){ byteLen += 2; } else{ byteLen++; } } return byteLen; } else{ return 0; } }   \u4f7f\u7528\u65b9\u6cd5 var strlength=lenFor(str)<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[1,9],"tags":[128],"_links":{"self":[{"href":"http:\/\/www.youthtribe.com\/wp-json\/wp\/v2\/posts\/742"}],"collection":[{"href":"http:\/\/www.youthtribe.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.youthtribe.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.youthtribe.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.youthtribe.com\/wp-json\/wp\/v2\/comments?post=742"}],"version-history":[{"count":2,"href":"http:\/\/www.youthtribe.com\/wp-json\/wp\/v2\/posts\/742\/revisions"}],"predecessor-version":[{"id":744,"href":"http:\/\/www.youthtribe.com\/wp-json\/wp\/v2\/posts\/742\/revisions\/744"}],"wp:attachment":[{"href":"http:\/\/www.youthtribe.com\/wp-json\/wp\/v2\/media?parent=742"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.youthtribe.com\/wp-json\/wp\/v2\/categories?post=742"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.youthtribe.com\/wp-json\/wp\/v2\/tags?post=742"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}