Python string concatenation related

#字符串拼接
#str. Join (tuples, lists, dictionaries, strings) can only be generated after a string.
str = "-";
Seq = ("A", "B", "C"); # string Sequence
Sqr=[' A ', ' B ', ' C ', ' SSS '] #list
Ssr=str.join (SQR)
Print (' = '. Join (SSR))

Print (Str.join (SQR));
Print (Str.join (seq));

Seq = {' Hello ': ' Nihao ', ' good ': 2, ' Boy ': 3, ' Doiido ': 4} #对象
Print ('-'. Join (SEQ))

#打印字符
Print ("His name is%s"% ("Aviad")) #1. Print a string
#http://www.cnblogs.com/plwang1990/p/3757549.html
Print ("He is%d years old"%) #2. Printing integers
Print ("His height is%f m"% (1.83)) #3. Print floating-point numbers
Print ("His height is%.2f m"% (1.83)) #4. Printing floating-point numbers (Specify the number of decimal places reserved)
Print ("name:%10s age:%8d height:%8.2f"% ("Aviad", 25,1.83)) #5. Specify the placeholder width
Print ("name:%-10s age:%-8d height:%-8.2f"% ("Aviad", 25,1.83)) #6. Specify the placeholder width (left-aligned)
Print ("name:%-10s age:%08d height:%08.2f"% ("Aviad", 25,1.83)) #7. Specify placeholders (only 0 placeholders?). ）

Python string concatenation related