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??????

    
   
    
    
??????
    
????????????????????????
    
    
????????
    
   
        
    
while??: ????????????
        
    
do-while??: ?????????????????????
        
    
for??: ??????????????????
    
   
    
???????1~100?????
    
   
    
        var num = 1;
        var result = 0;
        while(num <= 100){
            result += num;
            num++;
        }
        document.write("1~100????" + result);
    
   
    
do-while??????
    
   
    
        var num = 1;
        var result = 0;
        do{
            if(num % 2 != 0){
                result += num;
            }
            num++;
        }while(num <= 100);
        document.write("1~100??????" + result);
    
   
    
for??????
    
   
    
        var result = 0;
        for(var i = 1; i <= 100; i++){
            if(i % 2 == 0){
                result += i;
            }
        }
        document.write("1~100??????" + result);
    
   

for??????

    
   
    
    
for??????
    
    
for?????????????????????????????
    
    
???????1~100???????
    
   
    
        var result = 0;
        for(var i = 1; i <= 100; i++){
            if(i % 2 == 0){
                result += i;
            }
        }
        document.write("1~100??????" + result);
    
   
    
????????5?5??????
    
   
    
        for(var i = 0; i < 5; i++){
            for(var j = 0; j < 5; j++){
                document.write("* " + "\n
    
");
            }
            document.write("
    
");
        }
    
   
    
?????????
    
   
    
        for(var i = 1; i <= 9; i++){
            for(var j = 1; j <= i; j++){
                document.write(i + "*" + j + "=" + (i * j) + "  ");
            }
            document.write("
    
    
");
        }
    
   

for-in????

    
   
    
    
for-in????
    
    
for-in?????????????????
    
    
???????
    
   
    
        var arr = [12, 13, 19, 15, 16];
        for(var index in arr){
            document.write(arr[index] + ", ");
        }
    
   
    
?????????
    
   
    
        var p = new Person(110, "??");
        for(var property in p){
            document.write(p[property] + ", ");
        }
    
   
    
?????
    
   
    
        p.name = "??";
        p.age = 18;
        document.write("????????" + p.name + " - " + p.age);