...程序需要使用数据列表。例如，一款游戏可能会保存一份高分列表，社交应用会保存一份好友列表。 列表是一种用于所有编程语言的数据结构，而不仅仅是 App Inventor。 我们使用列表来创建和操作不同的值/元素集。 什么是索...

...科技创业的趋势是什么？ 我先提一个最近看的一部电影《Imitation Game》，讲计算机逻辑的奠基者艾伦图灵(计算机届最高奖以他命名)艰难的一生，他当年为破译德军密码制作了图灵机为二战胜利作出卓越贡献，挽回几千万人...

...互关系（比方说，它学习不了你虽然喜欢甄子丹和姜文的电影，却讨厌他们共同出演的电影《关云长》的情况）。 Advantages of Logistic Regression: Lots of ways to regularize your model, and you don’t have to worry as much about your features being cor...

...互关系（比方说，它学习不了你虽然喜欢甄子丹和姜文的电影，却讨厌他们共同出演的电影《关云长》的情况）。 Advantages of Logistic Regression: Lots of ways to regularize your model, and you don’t have to worry as much about your features being cor...

...互关系（比方说，它学习不了你虽然喜欢甄子丹和姜文的电影，却讨厌他们共同出演的电影《关云长》的情况）。 Advantages of Logistic Regression: Lots of ways to regularize your model, and you don’t have to worry as much about your features being cor...

...互关系（比方说，它学习不了你虽然喜欢甄子丹和姜文的电影，却讨厌他们共同出演的电影《关云长》的情况）。 Advantages of Logistic Regression: Lots of ways to regularize your model, and you don’t have to worry as much about your features being cor...

...互关系（比方说，它学习不了你虽然喜欢甄子丹和姜文的电影，却讨厌他们共同出演的电影《关云长》的情况）。 Advantages of Logistic Regression: Lots of ways to regularize your model, and you don’t have to worry as much about your features being cor...

...互关系（比方说，它学习不了你虽然喜欢甄子丹和姜文的电影，却讨厌他们共同出演的电影《关云长》的情况）。 Advantages of Logistic Regression: Lots of ways to regularize your model, and you don’t have to worry as much about your features being cor...

...互关系（比方说，它学习不了你虽然喜欢甄子丹和姜文的电影，却讨厌他们共同出演的电影《关云长》的情况）。 Advantages of Logistic Regression: Lots of ways to regularize your model, and you don’t have to worry as much about your features being cor...

...互关系（比方说，它学习不了你虽然喜欢甄子丹和姜文的电影，却讨厌他们共同出演的电影《关云长》的情况）。 Advantages of Logistic Regression: Lots of ways to regularize your model, and you don’t have to worry as much about your features being cor...