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我已經下載jsfeat,並解壓下載的文件。運行JavaScript程序從<a href="http://inspirit.github.io/jsfeat/" rel="nofollow">here</a>需要jsfeat
的目錄裏,我寫了下面:
require("./build/jsfeat.js");
var matrix = new jsfeat.matrix_t(2,2, jsfeat.U8_t | jsfeat.C1_t);
matrix.data[1] = 4;
console.log(matrix.data[1]);
我跑的程序如下:
$ node matrix.js
但是,得到了以下錯誤:
/Users/abc/Desktop/JavaScript/inspirit-jsfeat-59cc928/matrix.js:2
var matrix = new jsfeat.matrix_t(2,2, jsfeat.U8_t | jsfeat.C1_t);
^
ReferenceError: jsfeat is not defined
at Object.<anonymous> (/Users/abc/Desktop/JavaScript/inspirit-jsfeat-59cc928/matrix.js:2:19)
at Module._compile (module.js:425:26)
at Object.Module._extensions..js (module.js:432:10)
at Module.load (module.js:356:32)
at Function.Module._load (module.js:311:12)
at Function.Module.runMain (module.js:457:10)
at startup (node.js:136:18)
at node.js:972:3
爲什麼那?我該如何解決這個問題?
謝謝。