extjs4 —— 为表单的field必填项加红星号

Ext.form.field.Base.prototype.initComponent = function(){
    var me = this;
    Ext.form.field.Base.superclass.initComponent.call(this);


    me.subTplData = me.subTplData || {};

    this.addEvents(
        'focus',
        'blur',
        'specialkey'
    );
    // Init mixins
    me.initLabelable();
    me.initField();

    // Default name to inputId
    if (!me.name) {
        me.name = me.getInputId();
    }
    if(this.allowBlank === false && this.fieldLabel){
        this.fieldLabel += '<font color=red>*</font>';
    }


}