JS code

xiaoxiao2021-03-06  18

Function Man (Name, SEX, AGE) {var len = man.Arguments.Length; if (len == 3) {this.name = name; this.sex = sex;} else alert (" The parameter passes an error! ");} Myman = new man (" Silly "," Men ", 10); Alert (Myman.name);

IF (TypeOf (n) == "undefined")

Alert ("undefined");