dice_roll { 3 => add_fancy_hat(), 7 => remove_fancy_hat(), other => move_player(other), } fn add_fancy_hat() {} fn remove_fancy_hat() {} fn move_player(num_spaces: match dice_roll { 3 => add_fancy_hat(), 7 => remove_fancy_hat(), _ => reroll(), } fn add_fancy_hat() {} fn remove_fancy_hat() {} fn reroll() {} 这个例子也满足穷尽性要求，因为 match dice_roll { 3 => add_fancy_hat(), 7 => remove_fancy_hat(), _ => (), } fn add_fancy_hat() {} fn remove_fancy_hat() {} 在这里，我们明确告诉 Rust 我们不会使用与前面模式不匹配的值，并且这种情况下我们不想

For example, the variable name δ can be entered by typing \delta-tab, or even α̂⁽²⁾ by \alpha-tab-\hat- tab-\^(2)-tab. (If you find a symbol somewhere, e.g. in someone else's code, that you don't know the section on The Julia REPL. JULIA_ERROR_COLOR The formatting Base.error_color() (default: light red, "\033[91m") that errors should have at the termi- nal.CHAPTER 30. ENVIRONMENT VARIABLES 397 JULIA_WARN_COLOR @code_warntype is that non-concrete types are displayed in red; since this document is written in Markdown, which has no color, in this document, red text is denoted by uppercase. At the top, the inferred

For example, the variable name δ can be entered by typing \delta-tab, or even α̂⁽²⁾ by \alpha-tab-\hat- tab-\^(2)-tab. (If you find a symbol somewhere, e.g. in someone else's code, that you don't know the section on The Julia REPL. JULIA_ERROR_COLOR The formatting Base.error_color() (default: light red, "\033[91m") that errors should have at the termi- nal.CHAPTER 30. ENVIRONMENT VARIABLES 397 JULIA_WARN_COLOR @code_warntype is that non-concrete types are displayed in red; since this document is written in Markdown, which has no color, in this document, red text is denoted by uppercase. At the top, the inferred

For example, the variable name δ can be entered by typing \delta-tab, or even α̂⁽²⁾ by \alpha-tab-\hat- tab-\^(2)-tab. (If you find a symbol somewhere, e.g. in someone else's code, that you don't know the section on The Julia REPL. JULIA_ERROR_COLOR The formatting Base.error_color() (default: light red, "\033[91m") that errors should have at the termi- nal.CHAPTER 30. ENVIRONMENT VARIABLES 397 JULIA_WARN_COLOR @code_warntype is that non-concrete types are displayed in red; since this document is written in Markdown, which has no color, in this document, red text is denoted by uppercase. At the top, the inferred

For example, the variable name δ can be entered by typing \delta-tab, or even α̂⁽²⁾ by \alpha-tab-\hat- tab-\^(2)-tab. (If you find a symbol somewhere, e.g. in someone else's code, that you don't know the section on The Julia REPL. JULIA_ERROR_COLOR The formatting Base.error_color() (default: light red, "\033[91m") that errors should have at the termi- nal. JULIA_WARN_COLOR The formatting Base.warn_color() @code_warntype is that non-concrete types are displayed in red; since this document is written in Markdown, which has no color, in this document, red text is denoted by uppercase.CHAPTER 34. PERFORMANCE TIPS

For example, the variable name δ can be entered by typing \delta-tab, or even α̂⁽²⁾ by \alpha-tab-\hat- tab-\^(2)-tab. (If you find a symbol somewhere, e.g. in someone else's code, that you don't know the section on The Julia REPL. JULIA_ERROR_COLOR The formatting Base.error_color() (default: light red, "\033[91m") that errors should have at the termi- nal. JULIA_WARN_COLOR The formatting Base.warn_color() @code_warntype is that non-concrete types are displayed in red; since this document is written in Markdown, which has no color, in this document, red text is denoted by uppercase.CHAPTER 34. PERFORMANCE TIPS

For example, the variable name δ can be entered by typing \delta-tab, or even α̂⁽²⁾ by \alpha-tab-\hat- tab-\^(2)-tab. (If you find a symbol somewhere, e.g. in someone else's code, that you don't know the section on The Julia REPL. JULIA_ERROR_COLOR The formatting Base.error_color() (default: light red, "\033[91m") that errors should have at the termi- nal.CHAPTER 30. ENVIRONMENT VARIABLES 401 JULIA_WARN_COLOR @code_warntype is that non-concrete types are displayed in red; since this document is written in Markdown, which has no color, in this document, red text is denoted by uppercase. At the top, the inferred

For example, the variable name δ can be entered by typing \delta-tab, or even α̂⁽²⁾ by \alpha-tab-\hat- tab-\^(2)-tab. (If you find a symbol somewhere, e.g. in someone else's code, that you don't know the section on The Julia REPL. JULIA_ERROR_COLOR The formatting Base.error_color() (default: light red, "\033[91m") that errors should have at the termi- nal.CHAPTER 30. ENVIRONMENT VARIABLES 401 JULIA_WARN_COLOR @code_warntype is that non-concrete types are displayed in red; since this document is written in Markdown, which has no color, in this document, red text is denoted by uppercase. At the top, the inferred

For example, the variable name δ can be entered by typing \delta-tab, or even α̂⁽²⁾ by \alpha-tab-\hat- tab-\^(2)-tab. (If you find a symbol somewhere, e.g. in someone else's code, that you don't know the section on The Julia REPL. JULIA_ERROR_COLOR The formatting Base.error_color() (default: light red, "\033[91m") that errors should have at the termi- nal.CHAPTER 30. ENVIRONMENT VARIABLES 401 JULIA_WARN_COLOR @code_warntype is that non-concrete types are displayed in red; since this document is written in Markdown, which has no color, in this document, red text is denoted by uppercase. At the top, the inferred

For example, the variable name δ can be entered by typing \delta-tab, or even α̂⁽²⁾ by \alpha-tab-\hat- tab-\^(2)-tab. (If you find a symbol somewhere, e.g. in someone else's code, that you don't know the section on The Julia REPL. JULIA_ERROR_COLOR The formatting Base.error_color() (default: light red, "\033[91m") that errors should have at the termi- nal.CHAPTER 30. ENVIRONMENT VARIABLES 401 JULIA_WARN_COLOR @code_warntype is that non-concrete types are displayed in red; since this document is written in Markdown, which has no color, in this document, red text is denoted by uppercase. At the top, the inferred