year:2017 month:7 day:18时间:2023-03-09 16:22:03 2017-07-18 JavaScript 1javascript的控制语句 (1) if语句 (2)if(){}else 语句 (3) if(){} else if(){ }语句 (4)switch(){ case : }语句 (5)while 语句 (6)do{}while()语句 (7)for语句 (8)with(){}语句 (9)for(……in……){}语句 (10)break;语句