摘要：
The only time a variable appears "naked" -- without the $prefix -- is when declared or assigned, when unset, when exported, or in the special case of a variable representing a signal.Double quotes (".... 阅读全文
|
摘要：
The only time a variable appears "naked" -- without the $prefix -- is when declared or assigned, when unset, when exported, or in the special case of a variable representing a signal.Double quotes (".... 阅读全文
|