itarticle python course 2 week 1 Index of Strings Get the Length of a String Looping through Strings Slicing Strings String Concatenation Check if one string ‘is’ in another string Searching a String Make Uppercase Search and Replace Stripping Whitespace Prefixes 0
itarticle python course 1 week 5 用缩进，不是花括号 Nested If if-else Multi-way (“elif” which is “else if”) try-except (catch errors) 0
