print [100*n1+10*n2+n3 for n1 in range(1,10) for n2 in range (0,9) for n3 in range(0,9) if n1=n3]。這樣也可以得到和答案一樣的結果，但是代碼檢查沒通過，if n1=n3是模糊相等嗎？為什么這段代碼也可以跑出999這樣的數字呢？

請檢查輸出是否匹配：[101, 111, 121, 131, 141, 151, 161, 171, 181, 191, 202, 212, 222, 232, 242, 252, 262, 272, 282, 292, 303, 313, 323, 333, 343, 353, 363, 373, 383, 393, 404, 414, 424, 434, 444, 454, 464, 474, 484, 494, 505, 515, 525, 535, 545, 555, 565, 575, 585, 595, 606, 616, 626, 636, 646, 656, 666, 676, 686, 696, 707, 717, 727, 737, 747, 757, 767, 777, 787, 797, 808, 818, 828, 838, 848, 858, 868, 878, 888, 898, 909, 919, 929, 939, 949, 959, 969, 979, 989, 999] 再試試! 返回課程