SOP的另一限制是使用toString函数将变量序列化，因此缺省情况下它不能用于复合变量。

Another limitation of SOP is that it USES the toString function to serialize the variables and therefore cannot be used for complex variables by default.

youdao

再考虑到许多其他的复合变量，与在各种让人头疼的烦人景象中艰难的做出选择相比，读者们也许更容易放弃做这个选择。

Factor in a host of other complex variables, and it might simply be easier to avoid making the decision at all, rather than wade through the depressing list of regretful scenarios.

youdao

这里的这个方括号，同时，说明这个是特殊的变量类型，里面有很多复合的值。

The square brackets here, meanwhile, say this is a special type of variable that's got multiple values inside of it.

youdao

The square brackets here, meanwhile, say this is a special type of variable that's got multiple values inside of it.

这里的这个方括号，同时，说明这个是特殊的变量类型,里面有很多复合的值。

哈佛公开课 - 计算机科学课程节选