xcode 10以后的方法，一般使用
#ifdef DEBUG #define NSLog(FORMAT, ...) fprintf(stderr," %s:%d %s ",[[[NSString stringWithUTF8String:__FILE__] lastPathComponent] UTF8String],__LINE__, [[[NSString alloc] initWithData:[[NSString stringWithFormat:FORMAT, ##__VA_ARGS__] dataUsingEncoding:NSUTF8StringEncoding] encoding:NSNonLossyASCIIStringEncoding] UTF8String]); #else #define NSLog(...) #endif
xcode 10以前的是方法一般重写NSArray的descriptionWithLocale 方法
//
// NSDictionary+CBLog.m
// CaiBao
//
// Created by cb_2018 on 2019/2/21.
// Copyright © 2019 91cb. All rights reserved.
//
#import "NSDictionary+CBLog.h"
#import <objc/runtime.h>
@implementation NSDictionary (CBLog)
#ifdef DEBUG
+ (void)load
{
static dispatch_once_t onceToken;
dispatch_once(&onceToken, ^{
zx_swizzleSelector([self class], @selector(descriptionWithLocale:indent:), @selector(zx_descriptionWithLocale:indent:));
});
}
- (NSString *)zx_descriptionWithLocale:(id)locale indent:(NSUInteger)level
{
return [self stringByReplaceUnicode:[self zx_descriptionWithLocale:locale indent:level]];
}
- (NSString *)stringByReplaceUnicode:(NSString *)unicodeString
{
NSMutableString *convertedString = [unicodeString mutableCopy];
[convertedString replaceOccurrencesOfString:@"\U" withString:@"\u" options:0 range:NSMakeRange(0, convertedString.length)];
CFStringRef transform = CFSTR("Any-Hex/Java");
CFStringTransform((__bridge CFMutableStringRef)convertedString, NULL, transform, YES);
return convertedString;
}
static inline void zx_swizzleSelector(Class theClass, SEL originalSelector, SEL swizzledSelector)
{
Method originalMethod = class_getInstanceMethod(theClass, originalSelector);
Method swizzledMethod = class_getInstanceMethod(theClass, swizzledSelector);
BOOL didAddMethod =
class_addMethod(theClass,
originalSelector,
method_getImplementation(swizzledMethod),
method_getTypeEncoding(swizzledMethod));
if (didAddMethod) {
class_replaceMethod(theClass,
swizzledSelector,
method_getImplementation(originalMethod),
method_getTypeEncoding(originalMethod));
} else {
method_exchangeImplementations(originalMethod, swizzledMethod);
}
}
#endif
@end
//
// NSArray+CBLog.m
// CaiBao
//
// Created by cb_2018 on 2019/2/21.
// Copyright © 2019 91cb. All rights reserved.
//
#import "NSArray+CBLog.h"
@implementation NSArray (CBLog)
#ifdef DEBUG
- (NSString *)description {
return [self jl_descriptionWithLevel:1];
}
-(NSString *)descriptionWithLocale:(id)locale
{
return [self jl_descriptionWithLevel:1];
}
- (NSString *)descriptionWithLocale:(nullable id)locale indent:(NSUInteger)level {
return [self jl_descriptionWithLevel:(int)level];
}
/**
将数组转化成字符串，文字格式UTF8,并且格式化
@param level 当前数组的层级，最少为 1，代表最外层
@return 格式化的字符串
*/
- (NSString *)jl_descriptionWithLevel:(int)level {
NSString *subSpace = [self jl_getSpaceWithLevel:level];
NSString *space = [self jl_getSpaceWithLevel:level - 1];
NSMutableString *retString = [[NSMutableString alloc] init];
// 1、添加 [
[retString appendString:[NSString stringWithFormat:@"["]];
// 2、添加 value
[self enumerateObjectsUsingBlock:^(id _Nonnull obj, NSUInteger idx, BOOL * _Nonnull stop) {
if ([obj isKindOfClass:[NSString class]]) {
NSString *value = (NSString *)obj;
value = [value stringByReplacingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
NSString *subString = [NSString stringWithFormat:@" %@"%@",", subSpace, value];
[retString appendString:subString];
} else if ([obj isKindOfClass:[NSArray class]]) {
NSArray *arr = (NSArray *)obj;
NSString *str = [arr jl_descriptionWithLevel:level + 1];
str = [NSString stringWithFormat:@" %@%@,", subSpace, str];
[retString appendString:str];
} else if ([obj isKindOfClass:[NSDictionary class]]) {
NSDictionary *dic = (NSDictionary *)obj;
NSString *str = [dic descriptionWithLocale:nil indent:level + 1];
str = [NSString stringWithFormat:@" %@%@,", subSpace, str];
[retString appendString:str];
} else {
NSString *subString = [NSString stringWithFormat:@" %@%@,", subSpace, obj];
[retString appendString:subString];
}
}];
if ([retString hasSuffix:@","]) {
[retString deleteCharactersInRange:NSMakeRange(retString.length-1, 1)];
}
// 3、添加 ]
[retString appendString:[NSString stringWithFormat:@" %@]", space]];
return retString;
}
/**
根据层级，返回前面的空格占位符
@param level 层级
@return 占位空格
*/
- (NSString *)jl_getSpaceWithLevel:(int)level {
NSMutableString *mustr = [[NSMutableString alloc] init];
for (int i=0; i<level; i++) {
[mustr appendString:@" "];
}
return mustr;
}
#endif
@end
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另外只重写的方法
@implementation NSDictionary (Log)
- (NSString *)descriptionWithLocale:(id)locale
{
NSMutableString *str = [NSMutableString string];
[str appendString:@"{ "];
// 遍历字典的所有键值对
[self enumerateKeysAndObjectsUsingBlock:^(id key, id obj, BOOL *stop) {
[str appendFormat:@" %@ = %@, ", key, obj];
}];
[str appendString:@"}"];
// 查出最后一个,的范围
NSRange range = [str rangeOfString:@"," options:NSBackwardsSearch];
if (range.length != 0) {
// 删掉最后一个,
[str deleteCharactersInRange:range];
}
return str;
}
@end
@implementation NSArray (Log)
- (NSString *)descriptionWithLocale:(id)locale
{
NSMutableString *str = [NSMutableString string];
[str appendString:@"[ "];
// 遍历数组的所有元素
[self enumerateObjectsUsingBlock:^(id obj, NSUInteger idx, BOOL *stop) {
[str appendFormat:@"%@, ", obj];
}];
[str appendString:@"]"];
// 查出最后一个,的范围
NSRange range = [str rangeOfString:@"," options:NSBackwardsSearch];
if (range.length != 0) {
// 删掉最后一个,
[str deleteCharactersInRange:range];
}
return str;
}
@end
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iOS 让Xcode打印汉字, 而不是UTF8编码
2017年06月21日 15:15:41 小朱泽龙 阅读数：237
http://blog.csdn.net/Cloud_Pro/article/details/53391656
为NSArray添加分类
#import "NSArray+decription.h"
@implementation NSArray (decription)
- (NSString *)descriptionWithLocale:(id)locale
{
NSMutableString *str = [NSMutableString stringWithFormat:@"%lu ( ", (unsigned long)self.count];
for (id obj in self) {
[str appendFormat:@" %@, ", obj];
}
[str appendString:@")"];
return str;
}
@end
为NSDictionary添加分类
#import "NSDictionary+decription.h"
@implementation NSDictionary (decription)
- (NSString *)descriptionWithLocale:(id)locale
{
NSArray *allKeys = [self allKeys];
NSMutableString *str = [[NSMutableString alloc] initWithFormat:@"{ "];
for (NSString *key in allKeys) {
id value= self[key];
[str appendFormat:@" "%@" = %@, ",key, value];
}
[str appendString:@"}"];
return str;
}
@end
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iOS网络请求返回的汉字在日志里会显示成U63d0U4ea4U6210U529f，用下面的脚本就可以把Unicode显示成汉字
#!/bin/sh
cmd="/usr/bin/env python -c 'print("""$1""".lower().decode("unicode-escape").encode("utf-8"))'"
echo $cmd | sh
比如：把这个脚本命名为co，并使用chmod +x co添加可执行属性
使用co 'U63d0U4ea4U6210U529f'就可以显示汉字了。
链接：https://www.jianshu.com/p/