使用Schema类的describesSObjects方法获取描述sObject结果.使用此方法可以通过sObject类型名称描述一个或者多个sObject描述信息。

//sObject types to describe
String[] types = new String[]{'Account','Merchandise__c'};
//Make the describe call Schema.
DescribeSobjectResult[] results = Schema.DescribeSObjects(types);
System.debug('Got describe information for '+ results.size() + 'sObjects.');
//For each returned result, get some info
for(Schema.DescribeSObjectResult res : results) {
System.debug('sObject Label:'+res.getLabel());
System.debug('Number of fields:'+res.fields.getMap().size());
System.debug(res.isCustom()?'This is a custom object.':'This is a standard object.');
Schema.ChildRelationship[] rels = res.getChildRelationships();
if(rels.size()>0){
System.debug(res.getName() + 'has' + rels.size() +'child relationships.');
}
}

首先给大家看一下结果: