测试php代码，学习springf()函数

<?php
$s = 'monkey';
$t = 'many monkeys';
printf("[%s]\n", $s); // standard string output
printf("[%10s]\n", $s); // right-justification with spaces
printf("[%-10s]\n", $s); // left-justification with spaces
printf("[%010s]\n", $s); // zero-padding works on strings too
printf("[%'#10s]\n", $s); // use the custom padding character '#'
printf("[%10.10s]\n", $t); // left-justification but with a cutoff of 10 characters
$money = 1.4;
$formatted = sprintf ("%-02.2f", $money);
echo $formatted;
$number = 123;
$txt = sprintf("%f",$number);
echo $txt;
?>