SharePoint: 设置People or Group字段默认值为当前用户

check the code below:

<script type="text/javascript">
_spBodyOnLoadFunctionNames.push("fillDefaultValues");

function fillDefaultValues() {
fillPeoplePickerWithCurrentUser('TestUser'); //这里是字段的名字
}

function fillPeoplePickerWithCurrentUser(pickerName) {
//get the current user from the welcome menu
var currentUser = getCurrentUser();

//check to see that we've got it
if(currentUser != null){
//get the people pickers input div
var pp = getPickerInputElement(pickerName);
//set it to the current user if we've found it
if(pp != null)
pp.innerHTML = currentUser;
}
}

function getCurrentUser(){
var tags = document.getElementsByTagName('a');
for (var i=0; i < tags.length; i++){
if(tags[i].innerText.substr(0,7) == 'Welcome'){
return tags[i].innerText.substr(8,tags[i].innerText.length);
}
}
}

function getPickerInputElement(fieldsInternalName){
var result = "";
var divs = document.getElementsByTagName("DIV");
for(var i=0; i < divs.length ; i++){
if(divs[i].id=="WebPartWPQ2"){
var tds = divs[i].getElementsByTagName("TD");
for(var j=0; j < tds.length; j++){
var cellHTML = tds[j].innerHTML;
if(cellHTML.indexOf('FieldInternalName="' + fieldsInternalName + '"') >= 0){
var innerDivs = tds[j].getElementsByTagName("DIV");
for(var k=0; k < innerDivs .length; k++){
if(innerDivs[k].id.indexOf("UserField_upLevelDiv") > 0){
result = innerDivs[k];
break;
}
}
}
}
}
}
return result;
}
</script>

设置其他字段的默认值： Using Javascript to Manipulate a List Form Field