Returns a string representation of this stack trace element.
返回当前堆栈跟踪元素的字符串形式。
2
Gets a string representation of the frames on the call stack at the time the current exception was thrown.
取得在掷回目前例外状况时，呼叫堆叠上框架的字串表示。
3
Binary code analysis for security has many problems. There is difficult in deducing the representation of bug patterns in binary code, especially the accurate size of the buffer in stack.