local scope短语⁷⁰⁰⁰⁰ 基本例句 本地范围 Firefox3.1 Beta2 was somewhat surprising as local variable writes were very fast but performance degraded significantly once the variable was out of the local scope. Firefox3.1 Beta2的表现有点出人意料，对于局部变量执行的效率非常高，但随着作用域层数的增加，效率便大打折扣。 yeeyan