So STR, which I just typed up there, takes in parens, some input, and it converts it into a string, so that now I can use that John where I was expecting a string. John.

因此STR，也就是，我刚刚输入的，然后把这个输入变更为一个字符串，因此现在我就能,在需要用字符串的地方使用这个对象了。

麻省理工公开课 - 计算机科学及编程导论课程节选

I would like you to look at this piece of code right here called isPalindrome.

我将会输入一个字符串,命名为s，并局部赋值。

麻省理工公开课 - 计算机科学及编程导论课程节选