golang doc 代码
文件路径：/src/strconv/doc.go
/ Copyright 2015 The Go Authors. All rights reserved.
/ Use of this source code is governed by a BSD-style
/ license that can be found in the LICENSE file.
/ Package strconv implements conversions to and from string representations
/ of basic data types.
/
/ # Numeric Conversions
/
/ The most common numeric conversions are Atoi (string to int) and Itoa (int to string).
/
/ i, err := strconv.Atoi("-42")
/ s := strconv.Itoa(-42)
/
/ These assume decimal and the Go int type.
/
/ ParseBool, ParseFloat, ParseInt, and ParseUint convert strings to values:
/
/ b, err := strconv.ParseBool("true")
/ f, err := strconv.ParseFloat("3.1415", 64)
/ i, err := strconv.ParseInt("-42", 10, 64)
/ u, err := strconv.ParseUint("42", 10, 64)
/
/ The parse functions return the widest type (float64, int64, and uint64),
/ but if the size argument specifies a narrower width the result can be
/ converted to that narrower type without data loss:
/
/ s := "2147483647" / biggest int32
/ i64, err := strconv.ParseInt(s, 10, 32)
/ ...
/ i := int32(i64)
/
/ FormatBool, FormatFloat, FormatInt, and FormatUint convert values to strings:
/
/ s := strconv.FormatBool(true)
/ s := strconv.FormatFloat(3.1415, 'E', -1, 64)
/ s := strconv.FormatInt(-42, 16)
/ s := strconv.FormatUint(42, 16)
/
/ AppendBool, AppendFloat, AppendInt, and AppendUint are similar but
/ append the formatted value to a destination slice.
/
/ # String Conversions
/
/ Quote and QuoteToASCII convert strings to quoted Go string literals.
/ The latter guarantees that the result is an ASCII string, by escaping
/ any non-ASCII Unicode with \u:
/
/ q := strconv.Quote("Hello, 世界")
/ q := strconv.QuoteToASCII("Hello, 世界")
/
/ QuoteRune and QuoteRuneToASCII are similar but accept runes and
/ return quoted Go rune literals.
/
/ Unquote and UnquoteChar unquote Go string and rune literals.
package strconv