使用SeaJS，require加载Jquery的时候总是为null

这个问题困扰了我两天，使用别人的例子、官网down下来的example都没有问题。但是放到自己项目里就 var $=require(“jquery”) 为null。

后来发现，jquery本来没有amd规范的，于是从官网上的example下来里面的jquery拿过来直接用，最注意的是，在jquery里面增加了有define这段，里面有一个路径要根据自己实际项目路径进行调整

if ( typeof module === "object" && module && typeof module.exports === "object" ) {  
    // Expose jQuery as module.exports in loaders that implement the Node  
    // module pattern (including browserify). Do not create the global, since  
    // the user will be storing it themselves locally, and globals are frowned  
    // upon in the Node module world.  
    module.exports = jQuery;  
} else {  
    // Otherwise expose jQuery to the global object as usual  
    window.jQuery = window.$ = jQuery;  
  
    // Register as a named AMD module, since jQuery can be concatenated with other  
    // files that may use define, but not via a proper concatenation script that  
    // understands anonymous AMD modules. A named AMD is safest and most robust  
    // way to register. Lowercase jquery is used because AMD module names are  
    // derived from file names, and jQuery is normally delivered in a lowercase  
    // file name. Do this after creating the global so that if an AMD module wants  
    // to call noConflict to hide this version of jQuery, it will work.  
    if ( typeof define === "function" ) {  
        define("lib/jquery/jquery/1.10.1/jquery-debug",[], function () { return jQuery; } );  
    }  
}  

define(“lib/jquery/jquery/1.10.1/jquery-debug”,[], function () { return jQuery; } );