javascript获取URL查询字符串

 

function getArgs( ) { var args = new Object( ); var query = location.search.substring(1); // Get query string var pairs = query.split("&"); // Break at ampersand for(var i = 0; i < pairs.length; i++) { var pos = pairs[i].indexOf('='); // Look for "name=value" if (pos == -1) continue; // If not found, skip var argname = pairs[i].substring(0,pos); // Extract the name var value = pairs[i].substring(pos+1); // Extract the value value = decodeURIComponent(value); // Decode it, if needed args[argname] = value; // Store as a property } return args; // Return the object }

alert(getArgs()['str']);
或
alert(getArgs().str);