您最多选择25个主题
主题必须以字母或数字开头，可以包含连字符 (-)，并且长度不得超过35个字符
|
|
str = "hello"
|
|
|
wrl = " world!"
|
|
|
str[1]='a'
|
|
|
str[1]
|
|
|
str
|
|
|
length(str)
|
|
|
new = str + wrl
|
|
|
print("length is: ", length(new), "\n");
|
|
|
a = { str1: "hello", str2: " japan!" }
|
|
|
a[#str1]+=a[#str2]
|
|
|
str * 10
|
|
|
str * -1
|
|
|
str * str
|
|
|
str[0:5]="ok"
|
