From f2aa297d63cf4ca2b518a8fcb94ae84dbd5de191 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?=E4=B8=81=E7=B4=AB=E5=A6=8D?= <3053633754@qq.com> Date: Sun, 15 May 2022 20:41:32 +0800 Subject: [PATCH 1/2] test --- ...45\345\217\212\344\275\234\344\270\232.md" | 91 +++++++++++++++++++ 1 file changed, 91 insertions(+) create mode 100644 "\344\270\201\347\264\253\345\246\215/20220511-php\346\265\201\347\250\213\350\257\255\345\217\245\345\217\212\344\275\234\344\270\232.md" diff --git "a/\344\270\201\347\264\253\345\246\215/20220511-php\346\265\201\347\250\213\350\257\255\345\217\245\345\217\212\344\275\234\344\270\232.md" "b/\344\270\201\347\264\253\345\246\215/20220511-php\346\265\201\347\250\213\350\257\255\345\217\245\345\217\212\344\275\234\344\270\232.md" new file mode 100644 index 0000000..ff704e8 --- /dev/null +++ "b/\344\270\201\347\264\253\345\246\215/20220511-php\346\265\201\347\250\213\350\257\255\345\217\245\345\217\212\344\275\234\344\270\232.md" @@ -0,0 +1,91 @@ +# php流程语句 + +##### **比较运算符** + +```php +$a=1; +$b=2; + +var_dump(var: $a==$b); //1 2 false +echo "
"; +var_dump(var:$a>$b);//1>2 false +var_dump(var:$a<$b); //ture +``` + +=== 绝对等于,就是值和类型都要满足条件相等 + +##### **赋值运算符** + +```php +$a=1; +$a=2; +echo $a+=4; + +$name ="K"; +$name.="好白"; +echo +``` + +##### **自增自减运算符** + +```php +$a=10; +echo $a++; //10+1 +echo ++$a; //11+1 +``` + +##### **三元运算符** + +表达式1?表达式2:表达式3; + +```php +echo getMax(a:10,b:50); + +function getMax($a,$b){ +// return $a>$b?$a:$b; + return max($a,$b); //可求最大值 +} +``` + +**continue 跳过本次循环** + +# 作业 + +```php +" . "积分:" . $drink * 1; +} elseif ($drink > 20) { + echo "
" . "积分:" . (($drink - 20) * 1.5 + 20); +} +//3、使用循环倒序输出1-10之间的数字,至少两种方法实现。 +//方法1 +echo"
"; +for ($i = 10; $i >= 1; $i--) { + echo $i ."
"; +} +//方法2 +echo"
"; +$i=10; +while($i>=1){ + + echo $i--."
"; +} +``` + -- Gitee From fa619a78d3e7df4bffae250a92b100e9f8bd107a Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?=E4=B8=81=E7=B4=AB=E5=A6=8D?= <3053633754@qq.com> Date: Sun, 15 May 2022 20:43:08 +0800 Subject: [PATCH 2/2] test --- ...\257\255\345\217\245\345\217\212\344\275\234\344\270\232.md" | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git "a/\344\270\201\347\264\253\345\246\215/20220511-php\346\265\201\347\250\213\350\257\255\345\217\245\345\217\212\344\275\234\344\270\232.md" "b/\344\270\201\347\264\253\345\246\215/20220511-php\346\265\201\347\250\213\350\257\255\345\217\245\345\217\212\344\275\234\344\270\232.md" index ff704e8..4eb7670 100644 --- "a/\344\270\201\347\264\253\345\246\215/20220511-php\346\265\201\347\250\213\350\257\255\345\217\245\345\217\212\344\275\234\344\270\232.md" +++ "b/\344\270\201\347\264\253\345\246\215/20220511-php\346\265\201\347\250\213\350\257\255\345\217\245\345\217\212\344\275\234\344\270\232.md" @@ -17,7 +17,7 @@ var_dump(var:$a<$b); //ture ##### **赋值运算符** ```php -$a=1; +$a=1; $a=2; echo $a+=4; -- Gitee