数组 的一道题，有大神会的吗？
这是老师布置的作业，可是我不会，希望有
大神帮我讲解，谢谢你
呼呼厚
2020-03-23
6 回答
$green=$blue=$red=[];
for($i=2;$i<=100;$i+=2){
$i%2==0&&$arr[$i]=$i;
if($i%4==0&&$i%6!=0){
array_push($green,$arr[$i]);
echo '<span style="color: green">'.$i.'</span>'.'#';
} else if($i%6==0&&$i%4!=0){
array_push($blue,$arr[$i]);
echo '<span style="color: blue">'.$i.'</span>'.'#';
} else if($i%6==0&&$i%4==0){
array_push($red,$arr[$i]);
echo '<span style="color: red">'.$i.'</span>'.'#';
} else{
echo '<span style="color: black">'.$i.'</span>'.'#';
}
if($i%20==0) {
echo '<br>';
}
}
print_r($green);
echo '<br>';
print_r($blue);
echo '<br>';
print_r($red);
<?php
// 初始化定义1-100的数组
$arr1 = array();
// 用for循环赋值
for($i = 0; $i < 100; $i++){
$arr1[$i] = $i+1;
};
// 遍历$arr1数组内容
$j = 0;
do{
if(is_int($arr1[$j]/4) == true && is_int($arr1[$j]/6) == true){
if(is_int($arr1[$j]/4) == true || is_int($arr1[$j]/6) == true){
echo "<span style='color:red';'>".$arr1[$j]."#</span><br />";
};
}else if(is_int($arr1[$j]/4) == true){
echo "<span style='color:yellow';'>".$arr1[$j]."#</span>";
}else if(is_int($arr1[$j]/6) == true){
echo "<span style='color:blue';'>".$arr1[$j]."#</span>";
}else if(is_int($arr1[$j]/2) == true){
echo "<span style='color:black';'>".$arr1[$j]."#</span>";
};
$j++;
}while($j < count($arr1));
?>
<?php // 初始化定义1-100的数组 $arr1 = array(); // 用for循环赋值 for($i = 0; $i < 100; $i++){ $arr1[$i] = $i+1; }; // 遍历$arr1数组内容 $j = 0; do{ if(is_int($arr1[$j]/4) == true && is_int($arr1[$j]/6) == true){ if(is_int($arr1[$j]/4) == true || is_int($arr1[$j]/6) == true){ echo "<span style='color:red';'>".$arr1[$j]."#</span><br />"; }; }else if(is_int($arr1[$j]/4) == true){ echo "<span style='color:yellow';'>".$arr1[$j]."#</span>"; }else if(is_int($arr1[$j]/6) == true){ echo "<span style='color:blue';'>".$arr1[$j]."#</span>"; }else if(is_int($arr1[$j]/2) == true){ echo "<span style='color:black';'>".$arr1[$j]."#</span>"; }; $j++; }while($j < count($arr1));?>
$str = '';
$green = $blue = $red = [];
for($i=1,$j=1;$i<=100;$i++){
$remainder2 = $i % 2;
if( $remainder2 == 0 ){ //取偶数
$remainder4 = $i % 4;
$remainder6 = $i % 6;
if( $remainder4 == 0 && $remainder6 != 0){
$green[] = $i;
$str .= '<font color="green">'.$i.'</font>';
}else if($remainder4 != 0 && $remainder6 == 0){
$blue[] = $i;
$str .= '<font color="blue">'.$i.'</font>';
}else if($remainder4 == 0 && $remainder6 == 0){
$red[] = $i;
$str .= '<font color="red">'.$i.'</font>';
}else{
$str .= $i;
}
$str .= $j<10 ? '#' : '<br/>';
$j = $j == 10 ? 1 : $j+1;
}
}
echo $str.'<br/>';
echo '是4的倍数而不是6的倍数：</br>';
print_r($green);
echo '</br>是6的倍数而不是4的倍数：</br>';
print_r($blue);
echo '</br>即是4的倍数又是6的倍数：</br>';
print_r($red);
$str = '';
$green = $blue = $red = [];
for($i=1,$j=1;$i<=100;$i++){
$remainder2 = $i % 2;
if( $remainder2 == 0 ){
$remainder4 = $i % 4;
$remainder6 = $i % 6;
if( $remainder4 == 0 && $remainder6 != 0){
$green[] = $i;
$str .= '<font color="green">'.$i.'</font>';
}else if($remainder4 != 0 && $remainder6 == 0){
$blue[] = $i;
$str .= '<font color="blue">'.$i.'</font>';
}else if($remainder4 == 0 && $remainder6 == 0){
$red[] = $i;
$str .= '<font color="red">'.$i.'</font>';
}else{
$str .= $i;
}
$str .= $j<10 ? '#' : '<br/>';
$j = $j == 10 ? 1 : $j+1;
}
}
echo $str.'<br/>';
echo '是4的倍数而不是6的倍数：</br>';
print_r($green);
echo '</br>是6的倍数而不是4的倍数：</br>';
print_r($blue);
echo '</br>即是4的倍数又是6的倍数：</br>';
print_r($green);查看3条回复
<?php
$count = 0;
$arr1 = array();
$arr2 = array();
$arr3 = array();
// 输出符合条件的数字
for($i=1;$i<=100;$i++){
if($i%4==0 && $i%6!==0){
$count++;
array_push($arr1,$i);
echo "<font color=green>$i</font>","#";
continue;
}else if($i%4!=0 && $i%6==0){
$count++;
array_push($arr2,$i);
echo "<font color=blue>$i</font>","#";
continue;
}else if($i%4==0 && $i%6==0){
$count++;
array_push($arr3,$i);
echo "<font color=red>$i</font>","#";
continue;
}else if($i%2==0){
$count++;
echo "<font color=black>$i</font>","#";
continue;
}
// 输出10个换行
if($count%10==0){
echo "<br/>";
}
}
echo "<br/>";
echo "是4的倍数而不是6的倍数：","<br/>";
echo "Array(";
for($i=0; $i<sizeof($arr1); $i++){
echo "[",$i,"]","=>",$arr1[$i]," ";
}
echo ")";
echo "<br/>";
echo "是6的倍数而不是4的倍数：","<br/>";
echo "Array(";
for($i=0; $i<sizeof($arr2); $i++){
echo "[",$i,"]","=>",$arr2[$i]," ";
}
echo ")";
echo "<br/>";
echo "既是4的倍数又是6的倍数：","<br/>";
echo "Array(";
for($i=0; $i<sizeof($arr3); $i++){
echo "[",$i,"]","=>",$arr3[$i]," ";
}
echo ")";
?>
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