大家好，又见面了，我是你们的朋友全栈君。
1、length函数：计算向量或矩阵的长度
2、用法说明
y = length(x) 函数计算指定向量或矩阵的长度y。如果参数变量x是向量，则返回其长度；如果参数变量是非空矩阵，则length(x)与max(size(x))等价
3、举例说明
>> x = 'youhaidong'
x =
youhaidong
>> y = length(x)
y =
10
>> x = rand(6,6)
x =
0.8147 0.2785 0.9572 0.7922 0.6787 0.7060
0.9058 0.5469 0.4854 0.9595 0.7577 0.0318
0.1270 0.9575 0.8003 0.6557 0.7431 0.2769
0.9134 0.9649 0.1419 0.0357 0.3922 0.0462
0.6324 0.1576 0.4218 0.8491 0.6555 0.0971
0.0975 0.9706 0.9157 0.9340 0.1712 0.8235
>> y = length(x)
y =
64、附录
>> help length
length Length of vector.
length(X) returns the length of vector X. It is equivalent
to MAX(SIZE(X)) for non-empty arrays and 0 for empty ones.
See also numel.
Overloaded methods:
timer/length
serial/length
daqdevice/length
daqchild/length
distributed/length
codistributed/length
Composite/length
gpuArray/length
fints/length
videosource/length
videoinput/length
visa/length
udp/length
tcpip/length
icgroup/length
icdevice/length
i2c/length
gpib/length
Bluetooth/length
xregpointer/length
mbcstore/length
guidarray/length
cgrules/length
designdev/length
des_constraints/length
coninputfactor/length
xregcontainer/length
xregmulti/length
xregcovariance/length
xregmonitorplotproperties/length
xregdataset/length
cgtradeoffkeytable/length
dataset/length
categorical/length
tscollection/length
Reference page in Help browser
doc length版权声明：本文内容由互联网用户自发贡献，该文观点仅代表作者本人。本站仅提供信息存储空间服务，不拥有所有权，不承担相关法律责任。如发现本站有涉嫌侵权/违法违规的内容， 请联系我们举报，一经查实，本站将立刻删除。
发布者：全栈程序员-站长，转载请注明出处：https://javaforall.net/131063.html原文链接：https://javaforall.net
![查看Linux内核版本命令[通俗易懂]](https://javaforall.net/wp-content/uploads/2020/11/2020110817443450-480x300.jpg)
