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文字列長（size,length）

Python​

py
len(str1)
py
print len(str1.decode('UTF-8'))  # string size
print len(str1)                  # byte size

Swift​

swift
s.count

Bash​

bash
expr "$str1" : ".*"
${#str1}
bash
expr "abcd" : ".*"     # => 4
echo -n "abcd" | wc -m # => 4

function StringSize
{
    expr "$1" : ".*"
}

Ruby​

rb
str1.size
rb
str1.size      # string size
str1.bytesize  # byte size

C++​

cpp
str1.length()