.操做符html
点操做符用于链接字符串,例如:markdown
my $string1 = "i love ";
my $string2 = "china \n";
print $string1 . $string2;
运行结果: i love china
post
x操做符spa
字母x是表明字符串重复操做符,左操做数是表明要重复的字符串,右操做数表明要重复的次数,该操做数通常都会被转换成整数,例如:code
my $string3 = "china " x 3;
print $string3, "\n";
运行结果: china china china
htm