Formatted output in Go

//Code_002_basedata project Main.gopackage mainimport ("FMT") type Power struct {age int high int name String}func Main () {var str string str = "ABC" ch: = str[0] FMT. Printf ("str=%s, len=%d \ n", str, Len (str)) FMT. Printf ("str[0]=%c, ch =%c\n", str[0], ch) str2: = ' Hello mike \ r Test ' FMT. Println ("str2=", str2) var v1 complex64 v1 = 3.2 + 12i v2: = 3.2 + 12i v3: = Complex (3.2, +) FMT. Println (v1, v2, v3) fmt. Println (Real (v1), Imag (v1)) fmt. Println ("============") var i Power = power{18, 178, "Tom"} FMT. Printf ("type:%t\n", i) fmt. Printf ("value:%v\n", i) fmt. Printf ("value:%+v\n", i) fmt. Printf ("value:% #v \ n", i)/* ============ Type:main. Power value:{18 178 Tom} value:{age:18 high:178 Name:tom} value:main. Power{age:18, high:178, Name: "Tom"} */FMT. Println ("=====intervface=======") var interstr interface{} = i fmt. Printf ("%v\n", Interstr) fmt. PRINTLN (INTERSTR)/* =====intervface======={18 178 tom}{18 178 Tom} */}//commonly used formatting characters:%s,%d,%c,%T,%v,%p

Formatted output in Go