JPCFunction c函数返回值

[momoAI]

require('JPEngine').addExtensions(['JPCFunction']) defineCFunction("NSHomeDirectory", "NSString *, void") defineClass("Test", { tableView_didSelectRowAtIndexPath: function(tableView, indexPath) { var path = NSHomeDirectory(); console.log("=======" + path); } }, {});

调用NSHomeDirectory()返回值为false是怎么回事