switch语句 ⊙语法: swch(表达式) <TAB>case case expression 1 <TAB><TAB>Statements 1 <TAB>case case expression n <TAB><TAB>Statements n <TAB>otherwise <TAB><TAB>statements n+1 end 举例switch语句 语法： switch(表达式) <TAB>case case_expression_1 <TAB><TAB>statements_1 … <TAB>case case_expression_n <TAB><TAB>statements_n <TAB>otherwise <TAB><TAB>statements_n+1 end 举例