Always run code unchecked by default (for performance sake), but explicitly in checked mode for overflow or underflow prone operations.
Always run code unchecked by default (for performance sake), but explicitly in checked mode for overflow or underflow prone operations.
缺省总是以非检查的方式运行（为了性能考虑），但是对易于溢出或下溢的操作显式使用检查模式（图略）。