`type` 这个词有什么作用?
What does the `type` word do?
给定以下函数,(借用自Rosetta Code)
: (echo) ( sock buf -- sock buf )
begin
cr ." waiting..."
2dup 2dup size read-socket nip
dup 0>
while
." got: " 2dup type ( <-- HERE )
rot write-socket
repeat
drop drop drop ;
type
在做什么,
." got: " 2dup type
type
is a word. You can find the list of the words here
type c-addr u – core “type”
If u>0, display u characters from a string starting with the character stored at c-addr.
在这种情况下你有
128 constant size
create buf size allot
然后你用read-socket
设置buf
。 type
把它变成一个字符串并打印出来。
Returns 字符串的内存地址和大小。
cr s" foo bar " .s
输出:
<2> 94085808947584 8 ok
这里我们提供内存地址和大小给type
得到“foo bar”
cr 94085808947584 8 type
输出:
foo bar ok
给定以下函数,(借用自Rosetta Code)
: (echo) ( sock buf -- sock buf )
begin
cr ." waiting..."
2dup 2dup size read-socket nip
dup 0>
while
." got: " 2dup type ( <-- HERE )
rot write-socket
repeat
drop drop drop ;
type
在做什么,
." got: " 2dup type
type
is a word. You can find the list of the words here
type c-addr u – core “type”
If u>0, display u characters from a string starting with the character stored at c-addr.
在这种情况下你有
128 constant size
create buf size allot
然后你用read-socket
设置buf
。 type
把它变成一个字符串并打印出来。
Returns 字符串的内存地址和大小。
cr s" foo bar " .s
输出:
<2> 94085808947584 8 ok
这里我们提供内存地址和大小给type
得到“foo bar”
cr 94085808947584 8 type
输出:
foo bar ok